Etymology

The term originates from the Latin translation of Greek word politeia. Cicero, among other Latin writers, translated politeia into Latin as res publica, and it was in turn translated by Renaissance scholars as republic (or similar terms in various European languages). The term can literally be translated as 'public matter'. It was used by Roman writers to refer to the state and government, even during the period of the Roman Empire.

The term politeia can be translated as form of government, polity, or regime, and it does not necessarily imply any specific type of regime as the modern word republic sometimes does. One of Plato's major works on political philosophy, usually known in English as The Republic, was titled Politeia. However, apart from the title, modern translations are generally used. Aristotle was apparently the first classical writer to state that the term politeia can be used to refer more specifically to one type of politeia, asserting in Book III of his Politics: "When the citizens at large govern for the public good, it is called by the name common to all governments (to koinon onoma pasōn tōn politeiōn), government (politeia)". In later Latin works the term republic can also be used in a general way to refer to any regime, or to refer specifically to governments which work for the public good.

In medieval Northern Italy, a number of city states had commune or signoria based governments. In the late Middle Ages, writers such as Giovanni Villani described these states using terms such as libertas populi, a free people. The terminology changed in the 15th century as the renewed interest in the writings of Ancient Rome caused writers to prefer classical terminology. To describe non-monarchical states, writers (most importantly, Leonardo Bruni) adopted the Latin phrase res publica.

While Bruni and Machiavelli used the term to describe the states of Northern Italy, which were not monarchies, the term res publica has a set of interrelated meanings in the original Latin. In subsequent centuries, the English word commonwealth came to be used as a translation of res publica, and its use in English was comparable to how the Romans used the term res publica. Notably, during The Protectorate of Oliver Cromwell the word commonwealth was the most common term to call the new monarchless state, but the word republic was also in common use.

History

While the philosophical terminology developed in classical Greece and Rome, as already noted by Aristotle there was already a long history of city states with a wide variety of constitutions, not only in Greece but also in the Middle East. After the classical period, during the Middle Ages, many free cities developed again, such as Venice.

Since the Age of Revolution the term republic has described a system of government in which the source of authority for the government is a constitution and the legitimacy of its officials derives from the consent of the people rather than heredity or divine right.

Classical republics

The modern type of republic itself is different from any type of state found in the classical world. Nevertheless, there are a number of states of the classical era that are today still called republics. This includes ancient Athens and the Roman Republic. While the structure and governance of these states was different from that of any modern republic, there is debate about the extent to which classical, medieval, and modern republics form a historical continuum. J. G. A. Pocock has argued that a distinct republican tradition stretches from the classical world to the present. Other scholars disagree. Paul Rahe, for instance, argues that the classical republics had a form of government with few links to those in any modern country.

The political philosophy of the classical republics has influenced republican thought throughout the subsequent centuries. Philosophers and politicians advocating republics, such as Machiavelli, Montesquieu, Adams, and Madison, relied heavily on classical Greek and Roman sources which described various types of regimes.

Aristotle's Politics discusses various forms of government. One form Aristotle named politeia, which consisted of a mixture of the other forms, oligarchy and democracy. He argued that this was one of the ideal forms of government. Polybius expanded on many of these ideas, again focusing on the idea of mixed government and differentiated basic forms of government between "benign" monarchy, aristocracy, and democracy, and the "malignant" tyranny, oligarchy, and ochlocracy. The most important Roman work in this tradition is Cicero's De re publica.

Over time, the classical republics became empires or were conquered by empires. Most of the Greek republics were annexed to the Macedonian Empire of Alexander. The Roman Republic expanded dramatically, conquering the other states of the Mediterranean that could be considered republics, such as Carthage. The Roman Republic itself then became the Roman Empire.

Other ancient republics

The term republic is not commonly used to refer to pre-classical city-states, especially if outside Europe and the area which was under Graeco-Roman influence. However some early states outside Europe had governments that are sometimes today considered similar to republics.

In the ancient Near East, a number of cities of the Eastern Mediterranean achieved collective rule. Republic city-states flourished in Phoenicia along the Levantine coast starting from the 11th century BC. In ancient Phoenicia, the concept of Shophet was very similar to a Roman consul. Under Persian rule (539–332 BC), Phoenician city-states such as Tyre abolished the king system and adopted "a system of the suffetes (judges), who remained in power for short mandates of 6 years". Arwad has been cited as one of the earliest known examples of a republic, in which the people, rather than a monarch, are described as sovereign. The Israelite confederation of the era of the Judges

before the United Monarchy has also been considered a type of republic. The system of government of the Igbo people in what is now Nigeria has been described as "direct and participatory democracy".

Indian subcontinent

Early republican institutions come from the independent s means 'tribe' and means 'assembly'which may have existed as early as the 6th century BC and persisted in some areas until the 4th century AD in India. The evidence for this is scattered, however, and no pure historical source exists for that period. Diodorus, a Greek historian who wrote two centuries after the time of Alexander the Great's invasion of India (now Pakistan and northwest India) mentions, without offering any detail, that independent and democratic states existed in India. Modern scholars note the word democracy at the time of the 3rd century BC and later suffered from degradation and could mean any autonomous state, no matter how aristocratic in nature.

Key characteristics of the seem to include a gaṇa mukhya (chief), and a deliberative assembly. The assembly met regularly. It discussed all major state decisions. At least in some states, attendance was open to all free men. This body also had full financial, administrative, and judicial authority. Other officers, who rarely receive any mention, obeyed the decisions of the assembly. Elected by the , the chief apparently always belonged to a family of the noble class of Kshatriya Varna. The chief coordinated his activities with the assembly; in some states, he did so with a council of other nobles. The Licchavis had a primary governing body of 7,077 gaṇa mukhyas, the heads of the most important families. On the other hand, the Shakyas, Koliyas, Mallakas, and Licchavis, during the period around Gautama Buddha, had the assembly open to all men, rich and poor. Early republics or , such as Mallakas, centered in the city of Kusinagara, and the Vajjika (or Vṛjika) League, centered in the city of Vaishali, existed as early as the 6th century BC and persisted in some areas until the 4th century AD. The most famous clan amongst the ruling confederate clans of the Vajji Mahajanapada were the Licchavis. The Empire of Magadha included republican communities such as the community of Rajakumara. Villages had their own assemblies under their local chiefs called gramakas. Their administrations were divided into executive, judicial, and military functions.

Scholars differ over how best to describe these governments, and the vague, sporadic quality of the evidence allows for wide disagreements. Some emphasize the central role of the assemblies and thus tout them as democracies; other scholars focus on the upper-class domination of the leadership and possible control of the assembly and see an aristocracy. Despite the assembly's obvious power, it has not yet been established whether the composition and participation were truly popular. This is reflected in the Arthashastra, an ancient handbook for monarchs on how to rule efficiently. It contains a chapter on how to deal with the s, which includes injunctions on manipulating the noble leaders, yet it does not mention how to influence the mass of the citizens, indicating that the are more of an aristocratic republic, than democracy.

Icelandic Commonwealth

The Icelandic Commonwealth was established in 930 AD by refugees from Norway who had fled the unification of that country under King Harald Fairhair. The Commonwealth consisted of a number of clans run by chieftains, and the Althing was a combination of parliament and supreme court where disputes appealed from lower courts were settled, laws were decided, and decisions of national importance were taken. One such example was the Christianisation of Iceland in 1000, where the Althing decreed that all Icelanders must be baptized into Christianity, and forbade celebration of pagan rituals. Contrary to most states, the Icelandic Commonwealth had no official leader.

In the early 13th century, the Age of the Sturlungs, the Commonwealth began to suffer from long conflicts between warring clans. This, combined with pressure from the Norwegian king Haakon IV for the Icelanders to rejoin the Norwegian "family", led the Icelandic chieftains to accept Haakon IV as king by the signing of the Gamli sáttmáli ("Old Covenant") in 1262. This effectively brought the Commonwealth to an end. The Althing, however, is still Iceland's parliament, almost 800 years later.

Mercantile republics

In Europe new republics appeared in the late Middle Ages when a number of small states embraced republican systems of government. These were generally small, but wealthy, trading states, like the Mediterranean maritime republics and the Hanseatic League, in which the merchant class had risen to prominence. Knud Haakonssen has noted that, by the Renaissance, Europe was divided with those states controlled by a landed elite being monarchies and those controlled by a commercial elite being republics.

Italy was the most densely populated area of Europe, and also one with the weakest central government. Many of the towns thus gained considerable independence and adopted commune forms of government. Completely free of feudal control, the Italian city-states expanded, gaining control of the rural hinterland. The two most powerful were the Republic of Venice and its rival the Republic of Genoa. Each were large trading ports, and further expanded by using naval power to control large parts of the Mediterranean. It was in Italy that an ideology advocating for republics first developed. Writers such as Bartholomew of Lucca, Brunetto Latini, Marsilius of Padua, and Leonardo Bruni saw the medieval city-states as heirs to the legacy of Greece and Rome.

Across Europe a wealthy merchant class developed in the important trading cities. Despite their wealth they had little power in the feudal system dominated by the rural land owners, and across Europe began to advocate for their own privileges and powers. The more centralized states, such as France and England, granted limited city charters.

In the more loosely governed Holy Roman Empire, 51 of the largest towns became free imperial cities. While still under the dominion of the Holy Roman Emperor most power was held locally and many adopted republican forms of government. The same rights to imperial immediacy were secured by the major trading cities of Switzerland. The towns and villages of alpine Switzerland had, courtesy of geography, also been largely excluded from central control. Unlike Italy and Germany, much of the rural area was thus not controlled by feudal barons, but by independent farmers who also used communal forms of government. When the Habsburgs tried to reassert control over the region both rural farmers and town merchants joined the rebellion. The Swiss were victorious, and the Swiss Confederacy was proclaimed, and Switzerland has retained a republican form of government to the present.

Two Russian cities with a powerful merchant class—Novgorod and Pskov—also adopted republican forms of government in 12th and 13th centuries, respectively, which ended when the republics were conquered by Muscovy/Russia at the end of 15th – beginning of 16th century.

Following the collapse of the Seljuk Sultanate of Rum and establishment of the Turkish Anatolian Beyliks, the Ahiler merchant fraternities established a state centered on Ankara that is sometimes compared to the Italian mercantile republics.

The dominant form of government for these early republics was control by a limited council of elite patricians. In those areas that held elections, property qualifications or guild membership limited both who could vote and who could run. In many states no direct elections were held and council members were hereditary or appointed by the existing council. This left the great majority of the population without political power, and riots and revolts by the lower classes were common. The late Middle Ages saw more than 200 such risings in the towns of the Holy Roman Empire. Similar revolts occurred in Italy, notably the Ciompi Revolt in Florence.

Calvinist republics

While the classical writers had been the primary ideological source for the republics of Italy, in Northern Europe, the Protestant Reformation would be used as justification for establishing new republics. Most important was Calvinist theology, which developed in the Swiss Confederacy, one of the largest and most powerful of the medieval republics. John Calvin did not call for the abolition of monarchy, but he advanced the doctrine that the faithful had the duty to overthrow irreligious monarchs. Advocacy for republics appeared in the writings of the Huguenots during the French Wars of Religion.

Calvinism played an important role in the republican revolts in England and the Netherlands. Like the city-states of Italy and the Hanseatic League, both were important trading centres, with a large merchant class prospering from the trade with the New World. Large parts of the population of both areas also embraced Calvinism. During the Dutch Revolt (beginning in 1566), the Dutch Republic emerged from rejection of Spanish Habsburg rule. However, the country did not adopt the republican form of government immediately: in the formal declaration of independence (Act of Abjuration, 1581), the throne of king Philip was only declared vacant, and the Dutch magistrates asked the Duke of Anjou, queen Elizabeth of England and prince William of Orange, one after another, to replace Philip. It took until 1588 before the Estates (the Staten, the representative assembly at the time) decided to vest the sovereignty of the country in themselves.

In 1641 the English Civil War began. Spearheaded by the Puritans and funded by the merchants of London, the revolt was a success, and King Charles I was executed. In England James Harrington, Algernon Sidney, and John Milton became some of the first writers to argue for rejecting monarchy and embracing a republican form of government. The English Commonwealth was short-lived, and the monarchy was soon restored. The Dutch Republic continued in name until 1795, but by the mid-18th century the stadtholder had become a de facto monarch. Calvinists were also some of the earliest settlers of the British and Dutch colonies of North America.

Liberal republics

Along with these initial republican revolts, early modern Europe also saw a great increase in monarchical power. The era of absolute monarchy replaced the limited and decentralized monarchies that had existed in most of the Middle Ages. It also saw a reaction against the total control of the monarch as a series of writers created the ideology known as liberalism.

Most of these Enlightenment thinkers were far more interested in ideas of constitutional monarchy than in republics. The Cromwell regime had discredited republicanism, and most thinkers felt that republics ended in either anarchy or tyranny. Thus philosophers like Voltaire opposed absolutism while at the same time being strongly pro-monarchy.

Jean-Jacques Rousseau and Montesquieu praised republics, and looked on the city-states of Greece as a model. However, both also felt that a state like France, with 20 million people, would be impossible to govern as a republic. Rousseau admired the republican experiment in Corsica (1755–1769) and described his ideal political structure of small, self-governing communes. Montesquieu felt that a city-state should ideally be a republic, but maintained that a limited monarchy was better suited to a state with a larger territory.

The American Revolution began as a rejection only of the authority of the British Parliament over the colonies, not of the monarchy. The failure of the British monarch to protect the colonies from what they considered the infringement of their rights to representative government, the monarch's branding of those requesting redress as traitors, and his support for sending combat troops to demonstrate authority resulted in widespread perception of the British monarchy as tyrannical.

With the United States Declaration of Independence the leaders of the revolt firmly rejected the monarchy and embraced republicanism. The leaders of the revolution were well-versed in the writings of the French liberal thinkers, and also in the history of the classical republics. John Adams had notably written a book on republics throughout history. In addition, the widely distributed and popularly read-aloud tract Common Sense, by Thomas Paine, succinctly and eloquently laid out the case for republican ideals and independence to the larger public. The Constitution of the United States, which went into effect in 1789, created a relatively strong federal republic to replace the relatively weak confederation under the first attempt at a national government with the Articles of Confederation and Perpetual Union ratified in 1781. The first ten amendments to the Constitution called the United States Bill of Rights, guaranteed certain natural rights fundamental to republican ideals that justified the Revolution.

The French Revolution was also not republican at its outset. Only after the Flight to Varennes removed most of the remaining sympathy for the king was a republic declared and Louis XVI sent to the guillotine. The stunning success of France in the French Revolutionary Wars saw republics spread by force of arms across much of Europe as a series of client republics were set up across the continent. The rise of Napoleon saw the end of the French First Republic and her Sister Republics, each replaced by "popular monarchies". Throughout the Napoleonic period, the victors extinguished many of the oldest republics on the continent, including the Republic of Venice, the Republic of Genoa, and the Dutch Republic. They were eventually transformed into monarchies or absorbed into neighboring monarchies.

Outside Europe, another group of republics was created as the Napoleonic Wars allowed the states of Latin America to gain their independence. Liberal ideology had only a limited impact on these new republics. The main impetus was the local European-descended Creole population in conflict with the Peninsulares—governors sent from overseas. The majority of the population in most of Latin America was of either African or Amerindian descent, and the Creole elite had little interest in giving these groups power and broad-based popular sovereignty. Simón Bolívar, both the main instigator of the revolts and one of its most important theorists, was sympathetic to liberal ideals but felt that Latin America lacked the social cohesion for such a system to function and advocated autocracy as necessary.

In Mexico, this autocracy briefly took the form of a monarchy in the First Mexican Empire. Due to the Peninsular War, the Portuguese court was relocated to Brazil in 1808. Brazil gained independence as a monarchy on September 7, 1822, and the Empire of Brazil lasted until 1889. In many other Latin American states various forms of autocratic republic existed until most were liberalized at the end of the 20th century.

The French Second Republic was created in 1848 but abolished by Napoleon III who proclaimed himself Emperor in 1852. The French Third Republic was established in 1870 when a civil revolutionary committee refused to accept Napoleon III's surrender during the Franco-Prussian War. Spain briefly became the First Spanish Republic in 1873–74, but the monarchy was soon restored. By the start of the 20th century France, Switzerland and San Marino remained the only republics in Europe. This changed when, after the 1908 Lisbon Regicide, the 5 October 1910 revolution established the Portuguese Republic.

In East Asia, China had seen considerable anti-Qing sentiment during the 19th century, and a number of protest movements developed calling for constitutional monarchy. The most important leader of these efforts was Sun Yat-sen, whose Three Principles of the People combined American, European, and Chinese ideas. Under his leadership, the Republic of China was proclaimed on January 1, 1912.

Republican ideas were spreading, especially in Asia. The United States began to have considerable influence in East Asia in the later part of the 19th century, with Protestant missionaries playing a central role. The liberal and republican writers of the West also exerted influence. These combined with native Confucian inspired political philosophy that had long argued that the populace had the right to reject unjust governments that had lost the Mandate of Heaven.

During this period, three short-lived republics were proclaimed in East Asia; the Republic of Ezo, the Republic of Formosa, and the First Philippine Republic.

Republicanism expanded significantly in the aftermath of World War I when several of the largest European empires collapsed: the Russian Empire (1917), German Empire (1918), Austro-Hungarian Empire (1918), and Ottoman Empire (1922) were all replaced by republics. New states gained independence during this turmoil, and many of these, such as Ireland, Poland, Finland and Czechoslovakia, chose republican forms of government. Following Greece's defeat in the Greco-Turkish War (1919–22), the monarchy was briefly replaced by the Second Hellenic Republic (1924–35). In 1931, the proclamation of the Second Spanish Republic (1931–39) resulted in the Spanish Civil War leading to the establishment of a Francoist regime.

The aftermath of World War II left Italy with a destroyed economy, a divided society, and anger against the monarchy for its endorsement of the Fascist regime. These frustrations contributed to a revival of the Italian republican movement. King Umberto II was pressured to call the 1946 Italian institutional referendum to decide whether Italy should remain a monarchy or become a republic. The supporters of the republic chose the effigy of the Italia turrita, the national personification of Italy, as their unitary symbol to be used in the electoral campaign and on the referendum ballot on the institutional form of the State, in contrast to the Savoy coat of arms, which represented the monarchy. On June 2, 1946 the republican side won 54.3% of the vote and Italy officially became a republic, a day celebrated since as Festa della Repubblica. Italy has a written democratic constitution, resulting from the work of a Constituent Assembly formed by the representatives of all the anti-fascist forces that contributed to the defeat of Nazi and Fascist forces during the liberation of Italy.

Decolonization

In the years following World War II, most of the remaining European colonies gained their independence, and most became republics. The two largest colonial powers were France and the United Kingdom. Republican France encouraged the establishment of republics in its former colonies. The United Kingdom attempted to follow the model it had for its earlier settler colonies of creating independent Commonwealth realms still linked under the same monarch. While most of the settler colonies and the smaller states in the Caribbean and the Pacific retained this system, it was rejected by the newly independent countries in Africa and Asia, which revised their constitutions and became republics instead.

Britain followed a different model in the Middle East; it installed local monarchies in several colonies and mandates including Iraq, Jordan, Kuwait, Bahrain, Oman, Yemen and Libya. In subsequent decades revolutions and coups overthrew a number of monarchs and installed republics. Several monarchies remain, and the Middle East is the only part of the world where several large states are ruled by monarchs with almost complete political control.

Socialist republics

In the wake of the First World War, the Russian monarchy fell during the Russian Revolution. The Russian Provisional Government was established in its place on the lines of a liberal republic, but this was overthrown by the Bolsheviks who went on to establish the Union of Soviet Socialist Republics (USSR). This was the first republic established under Marxist–Leninist ideology. Communism was wholly opposed to monarchy and became an important element of many republican movements during the 20th century. The Russian Revolution spread into Mongolia and overthrew its theocratic monarchy in 1924. In the aftermath of the Second World War, the communists gradually gained control of Romania, Bulgaria, Yugoslavia, Hungary and Albania, ensuring that the states were reestablished as socialist republics rather than monarchies.

Communism also intermingled with other ideologies. It was embraced by many national liberation movements during decolonization. In Vietnam, communist republicans pushed aside the Nguyễn dynasty, and monarchies in neighbouring Laos and Cambodia were overthrown by communist movements in the 1970s. Arab socialism contributed to a series of revolts and coups that saw the monarchies of Egypt, Iraq, Libya, and Yemen ousted. In Africa, Marxism–Leninism and African socialism led to the end of monarchy and the proclamation of republics in states such as Burundi and Ethiopia.

Constitution

A republic does not necessarily have a constitution but is often constitutional in the sense of constitutionalism, meaning that it is constituted by a set of institutions which provide a separation of powers. The term constitutional republic is a way to highlight an emphasis on the separation of powers in a given republic, as with constitutional monarchy or absolute monarchy highlighting the absolute autocratic character of a monarchy.

Head of state

Structure

With no monarch, most modern republics use the title president for the head of state. Originally used to refer to the presiding officer of a committee or governing body in Great Britain the usage was also applied to political leaders, including the leaders of some of the Thirteen Colonies (originally Virginia in 1608); in full, the "President of the Council". The first republic to adopt the title was the United States of America. Keeping its usage as the head of a committee the President of the Continental Congress was the leader of the original congress. When the new constitution was written the title of President of the United States was conferred on the head of the new executive branch.

If the head of state of a republic is also the head of government, this is called a presidential system. There are a number of forms of presidential government. A full-presidential system has a president with substantial authority and a central political role.

In other states the legislature is dominant and the presidential role is almost purely ceremonial and apolitical, such as in Germany, Italy, India, and Trinidad and Tobago. These states are parliamentary republics and operate similarly to constitutional monarchies with parliamentary systems where the power of the monarch is also greatly circumscribed. In parliamentary systems the head of government, most often titled prime minister, exercises the most real political power. Semi-presidential systems have a president as an active head of state with important powers, but they also have a prime minister as a head of government with important powers.

The rules for appointing the president and the leader of the government, in some republics permit the appointment of a president and a prime minister who have opposing political convictions: in France, when the members of the ruling cabinet and the president come from opposing political factions, this situation is called cohabitation.

In some countries, like Bosnia and Herzegovina, San Marino, and Switzerland, the head of state is not a single person but a committee (council) of several persons holding that office. The Roman Republic had two consuls, elected for a one-year term by the comitia centuriata, consisting of all adult, freeborn males who could prove citizenship.

Elections

In democracies, presidents are elected, either directly by the people or indirectly by a parliament or council. Typically in presidential and semi-presidential systems the president is directly elected by the people or is indirectly elected as done in the United States. In that country, the president is officially elected by an electoral college, chosen by the States. All U.S. States have chosen electors by popular election since 1832. The indirect election of the president through the electoral college conforms to the concept of the republic as one with a system of indirect election. In the opinion of some, direct election confers legitimacy upon the president and gives the office much of its political power. However, this concept of legitimacy differs from that expressed in the United States Constitution which established the legitimacy of the United States president as resulting from the signing of the Constitution by nine states. The idea that direct election is required for legitimacy also contradicts the spirit of the Great Compromise, whose actual result was manifest in the clause that provides voters in smaller states with more representation in presidential selection than those in large states; for example citizens of Wyoming in 2016 had 3.6 times as much electoral vote representation as citizens of California.

In states with a parliamentary system, the president is usually elected by the parliament. This indirect election subordinates the president to the parliament, and also gives the president limited legitimacy and turns most presidential powers into reserve powers that can only be exercised under rare circumstances. There are exceptions where elected presidents have only ceremonial powers, such as in Ireland.

Ambiguities

The distinction between a republic and a monarchy is not always clear. The constitutional monarchies of the former British Empire and Western Europe today have almost all real political power vested in the elected representatives, with the monarchs only holding either theoretical powers, no powers or rarely used reserve powers. Real legitimacy for political decisions comes from the elected representatives and is derived from the will of the people. While hereditary monarchies remain in place, political power is derived from the people as in a republic. These states are thus sometimes referred to as crowned republics.

Terms such as "liberal republic" are also used to describe all of the modern liberal democracies.

There are also self-proclaimed republics that act similarly to absolute monarchies with absolute power vested in the leader and passed down from father to son. North Korea and Syria are two notable examples where a son has inherited political control. Neither of these states are officially monarchies. There is no constitutional requirement that power be passed down within one family, but it has occurred in practice.

There are also elective monarchies where ultimate power is vested in a monarch, but the monarch is chosen by some manner of election. A current example of such a state is Malaysia where the Yang di-Pertuan Agong is elected every five years by the Conference of Rulers composed of the nine hereditary rulers of the Malay states, and the Vatican City-State, where the pope is selected by cardinal-electors, currently all cardinals under the age of 80. While rare today, elective monarchs were common in the past. The Holy Roman Empire is an important example, where each new emperor was chosen by a group of electors. Islamic states also rarely employed primogeniture, instead relying on various forms of election to choose a monarch's successor.

The Polish–Lithuanian Commonwealth had an elective monarchy, with a wide suffrage of some 500,000 nobles. The system, known as the Golden Liberty, had developed as a method for powerful landowners to control the crown. The proponents of this system looked to classical examples, and the writings of the Italian Renaissance, and called their elective monarchy a rzeczpospolita, based on res publica.

Sub-national republics

In general being a republic also implies sovereignty as for the state to be ruled by the people it cannot be controlled by a foreign power. There are important exceptions to this, for example, republics in the Soviet Union were member states which had to meet three criteria to be named republics:

• be on the periphery of the Soviet Union so as to be able to take advantage of their theoretical right to secede;

• be economically strong enough to be self-sufficient upon secession; and

• be named after at least one million people of the ethnic group which should make up the majority population of said republic.

It is sometimes argued that the former Soviet Union was also a supra-national republic, based on the claim that the member states were different nation states.

The Socialist Federal Republic of Yugoslavia was a federal entity composed of six republics (Socialist Republic of Bosnia and Herzegovina, Croatia, Macedonia, Montenegro, Serbia, and Slovenia). Each republic had its parliament, government, institute of citizenship, constitution, etc., but certain functions were delegated to the federation (army, monetary matters). Each republic also had a right of self-determination according to the conclusions of the second session of the AVNOJ and according to the federal constitution.

In Switzerland, all cantons can be considered to have a republican form of government, with constitutions, legislatures, executives and courts; many of them being originally sovereign states. As a consequence, several Romance-speaking cantons are still officially referred to as republics, reflecting their history and will of independence within the Swiss Confederation. Notable examples are the Republic and Canton of Geneva and the Republic and Canton of Ticino.

States of the United States are required, like the federal government, to be republican in form, with final authority resting with the people. This was required because the states were intended to create and enforce most domestic laws, with the exception of areas delegated to the federal government and prohibited to the states. The founders of the country intended most domestic laws to be handled by the states. Requiring the states to be a republic in form was seen as protecting the citizens' rights and preventing a state from becoming a dictatorship or monarchy, and reflected unwillingness on the part of the original 13 states (all independent republics) to unite with other states that were not republics. Additionally, this requirement ensured that only other republics could join the union.

In the example of the United States, the original 13 British colonies became independent states after the American Revolution, each having a republican form of government. These independent states initially formed a loose confederation called the United States and then later formed the current United States by ratifying the current U.S. Constitution, creating a union that was a republic. Any state joining the union later was also required to be a republic.

Other meanings

Archaic meaning

Before the 17th Century, the term 'republic' could be used to refer to states of any form of government as long as it was not a tyrannical regime. French philosopher Jean Bodin's definition of the republic was "the rightly ordered government of a number of families, and of those things which are their common concern, by a sovereign power." Oligarchies and monarchies could also be included as they were also organised toward 'public' shared interests. In medieval texts, 'republic' was used to refer to the body of shared interest with the king at its head. For instance, the Holy Roman Empire was also known as the Sancta Respublica Romana, the Holy Roman Republic. The Byzantine Empire also continued calling itself the Roman Republic as the Byzantines did not regard monarchy as a contradiction to republicanism. Instead, republics were defined as any state based on popular sovereignty and whose institutions were based on shared values.

Democracy vs. republic debate

In a republic state, power is held by the people through elected representatives. The head of state is typically elected or nominated by representatives. In a democratic state, power is wielded by the people of the state, typically through a mixture of elected representatives and direct voting, but in theory could happen purely by Direct democracy without elected representatives acting as proxies. Many states are considered a mixture of both ideals, such as a Representative democracy or Democratic republic.

The term democracy is sometimes used interchangeably with the term republic, while others have made sharp distinctions between the two for millennia. "Montesquieu, founder of the modern constitutional state, repeated in his The Spirit of the Laws of 1748 the insight that Aristotle had expressed two millennia earlier, 'Voting by lot is in the nature of democracy; voting by choice is in the nature of aristocracy. Additional critics of elections include Rousseau, Robespierre, and Marat, who said of the new French Republic, "What use is it to us, that we have broken the aristocracy of the nobles, if that is replaced by the aristocracy of the rich?"

Political philosophy

The term republic originated from the writers of the Renaissance as a descriptive term for states that were not monarchies. These writers, such as Machiavelli, also wrote important prescriptive works describing how such governments should function. These ideas of how a government and society should be structured is the basis for an ideology known as classical republicanism or civic humanism. This ideology is based on the Roman Republic and the city states of Ancient Greece and focuses on ideals such as civic virtue, rule of law and mixed government.

This understanding of a republic as a form of government distinct from a liberal democracy is one of the main theses of the Cambridge School of historical analysis. This grew out of the work of J. G. A. Pocock who in 1975 argued that a series of scholars had expressed a consistent set of republican ideals. These writers included Machiavelli, Milton, Montesquieu and the founders of the United States of America.

Pocock argued that this was an ideology with a history and principles distinct from liberalism. These ideas were embraced by a number of different writers, including Quentin Skinner, Philip Pettit and Cass Sunstein. These subsequent writers have further explored the history of the idea, and also outlined how a modern republic should function.

United States

A distinct set of definitions of the term "republic" evolved in the United States, where the term is often equated with "representative democracy." This narrower understanding of the term was originally developed by James Madison and notably employed in Federalist Paper No. 10. This meaning was widely adopted early in the history of the United States, including in Noah Webster's dictionary of 1828. It was a novel meaning to the term; representative democracy was not an idea mentioned by Machiavelli and did not exist in the classical republics. There is also evidence that contemporaries of Madison considered the meaning of "republic" to reflect the broader definition found elsewhere, as is the case with a quotation of Benjamin Franklin taken from the notes of James McHenry where the question is put forth, "a Republic or a Monarchy?".

The term republic does not appear in the Declaration of Independence, but it does appear in Article IV of the Constitution, which "guarantees to every State in this Union a Republican form of Government." What exactly the writers of the constitution felt this should mean is uncertain. The Supreme Court, in Luther v. Borden (1849), declared that the definition of republic was a "political question" in which it would not intervene. In two later cases, it did establish a basic definition. In United States v. Cruikshank (1875), the court ruled that the "equal rights of citizens" were inherent to the idea of a republic.

However, the term republic is not synonymous with the republican form. The republican form is defined as one in which the powers of sovereignty are vested in the people and are exercised by the people, either directly, or through representatives chosen by the people, to whom those powers are specially delegated.

Beyond these basic definitions, the word republic has a number of other connotations. W. Paul Adams observes that republic is most often used in the United States as a synonym for "state" or "government," but with more positive connotations than either of those terms. Republicanism is often referred to as the founding ideology of the United States. Traditionally scholars believed this American republicanism was a derivation of the classical liberal ideologies of John Locke and others developed in Europe.

In the 1960s and 1970s, Bernard Bailyn began to argue that republicanism was just as, or even more important than liberalism in the creation of the United States. This issue is still much disputed and scholars like Isaac Kramnick completely reject this view.

詞源

「共和制」起源自拉丁語，意思是「公共事務」（public affairs, öffentliche Sache）。西塞羅將古希臘詞語譯為拉丁語，在文藝復興時代，這個拉丁語詞語又被譯為英文，其他西歐語言中也用類似的詞語。

意指政府的形式、政體或政權，柏拉圖與亞里斯多德都曾經使用這個名詞。在拉丁文中，通常是用來泛指各種與政府或政權相關的事務。

中文裏的「共和」譯詞來自中國史上西周的周召共和時期。1845年，日本漢學家箕作省吾用變體漢文所著的《坤輿圖識》（1845年出版）中首次使用「共和」作為「」譯語。這個譯語是採用中國西周時代，周召共和的典故，當時周朝掀起了國人暴動將無道的周厲王推翻，之後諸侯推舉有威望的共伯和（共國的伯君，名「和」）代行王政，而厲王則逃去了彘地。過了14年，厲王客死他鄉，共伯和於是立厲王之子靜為王，而共伯和執政的這14年便稱「共和行政」。將「共和」與「republic」對譯，喻指沒有君主的政體。另外，自清末，共和國也譯為「民國」、「民主國」，意思是民之所有所治所享之國（中華民國、大韓民國），構詞方式與「帝國」、「王國」、「公國」等相似。

演變

一般來說共和制就是國家各種不同的階級結合起來共同談和，協商和共同管理國家的一種管理國家的方法制度。相對於帝國及王國，共和的特點是國家元首並非世襲的皇帝，而是按照法律選舉出的。

共和有其中最關鍵的幾個特徵為：

• 人民不是君主或最高統治者的所有物或附屬品。

• 有某種有實際效力的法律限制政府權力，並保護人民的基本權利。

• 人民意識形態上認知國家事務為公共事務。

在實踐上，民主的概念未必是共和制所包括的，宣稱採用共和制政府形式也可能會有某種程度專制甚至獨裁的情形。根據孟德斯鳩的分類，民主（所有的人民都享有一部分統治權），和貴族政治或寡頭政治（只有一部分人掌握統治權）都有可能屬于共和制。

共和制一般可以分為總統制、議會共和制、委員會制和半總統制。

古代

最早的共和政體可以追溯到西亞的阿卡德。最著名的古代共和國，則是前509年建立的羅馬共和國。在現代民主制度出現之前，還有國家如城邦採用共和政體，比如說中世紀的威尼斯共和國。共和政體和君主政體的最大差別在於國家元首的產生方式。

在古代，雖然共和名義上是所有公民共享的制度；這還不包括沒有公民權的奴隸，但實際上則多是貴族共和。在這些共和國裡，只有貴族才有參政的權力。羅馬共和國就是這樣一個例子。

亞里士多德認為國家的制度可以由兩個維度而確定，第一個維度為統治者的數量，以此可以分為「一人統治」，「少數人統治」，「多數人（或全體）統治」；第二個維度為國家機器的服務對象，可以分為「為全體服務」和「為部分人服務」。

將兩種維度映射起來就形成了六種政體的國家：

• 君主制（一人統治為全體服務）國家；

• 僭主制（一人統治為部分服務）國家；

• 貴族制（少數統治為全體服務）國家；

• 寡頭制（少數統治為部分服務）國家；

• 民主制（多數人統治為全體服務）國家；

• 平民制（多數人統治為部分服務）國家。

亞里士多德認為將以上六種國家中的1、3、5三種即君主制、貴族制與民主制三種制度三體合一，形成的制度是共和制，這種制度是最優秀的制度。 具體的運作方式是依靠分封制度來形成的：即國王保護整個國家的土地，作為回報貴族需要向國王上貢；貴族保護民眾的土地，作為回報，民眾需要繳稅。不同的人有不同的事情做，互相依存又互不幹涉。這就是早期的共和制的由來。

共和制既可以保証公民的民主與積極性，又可以防止平民針對少數人的暴政。

現代

一些教科書以政府體制區分共和制和君主制，主要是以國家元首的頭銜及產生方式做區分，但未必和其共和程度相關。（參見共和主義）

例如加拿大及澳大利亞等英聯邦國家在實務上都有某種程度上的共和主義（有憲法保護人民權力，國家事務為公共事務，人民並非統治者的所有物）。而被一些教科書認為並非完全意義的共和國家。

中文「虛君共和」為梁啟超在清朝支持君主立憲制時所提出，主要原因是要和當時革命黨支持的共和制競爭公共性：「第五種，虛戴君主之共和政體。英人恆自稱為大不列顛合眾王國，或自稱為共和王國。其名稱與美無異，淺人驟聞之，或且訝為不詞。不知英之有王，不過以為裝飾品，無絲毫實權，號為神聖，等於偶像。故論政體者，恆以英編入共和之一種。其後比利時本此意編為成文憲法，歐洲各小邦多效之。故今日歐洲各國，什九皆屬虛戴君主之共和政體也，今省名曰虛君共和制。」君主國通常為世襲制，當他們死後根據繼位規則由一個親屬接替。共和國的領導人則相反，通常依法律選舉出來，並通常有一個法律規定的期限。由民主投票來選出的稱為民主共和制。由一定數目委員所組成的委員會共同行使國家元首或政府首腦、首長的職務與政治權力稱為委員共和制。此外，由聯邦主體和聯邦制國家成員組成的共和國稱為聯邦共和國。

現代共和制度則強調公民有權力參與部分國家的法律制定，政策制定和執行，雖然實際執行上不一定如此。

在現代，共和國家的元首通常僅為一人，通常稱為總統，但也有其他稱呼，例如部分社會主義國家的元首稱為主席，但政治地位在執政共產黨總書記之下。某些國家的元首多於一人，例如瑞士，有一個七人委員會作為國家元首，稱為瑞士聯邦委員會，還有聖馬利諾，國家元首的位置由兩位執政官共享。

美國是聯邦共和制。共和這個詞義的使用在美國開國者時期非常通用。美國憲法的起草者為了很多原因選擇共和制。例如，對每一個政治問題從每一個公民收集選票，即直接民主容易產生多數人惡政，是不切實際的。此外，憲法規定美國總統由選舉人選出的間接選舉，選舉人依各州的議員數目而定，美國國會實行兩院制，不論人口多寡有相同代表的美國參議院比大約按照人口比例分配數目的美國眾議院有更大的權力，包括對聯邦官員及大法官行使同意權。理論上，議員行使代議的權力，比普通平民對政治事務更了解，並更少情緒化。美國的開國元勳們認為，共和可以設計為用來抵抗「多數人暴政」的保護機制。

變體

共和國的一個變體稱為「社會主義共和國」，這樣的體制基于馬克思列寧主義國家理論。這種理論認為其他形式的國家實質上由資產階級占有，大多數工農群眾被排斥在國家體制之外，唯獨無產階級組建的政黨領導代表工農利益的國家才能稱為真正的共和國。因此「人民共和國」往往可以被理解為與其他資產階級共和國相區別的「共和國」。由于列寧主義認為無產階級必須由「先鋒隊」來代表，斯大林主義則在其基礎上完全確立一黨專政體制。

朝鮮民主主義人民共和國一般認知上不是社會主義共和國，因為憲法沒有實際效力，人民意識形態上國家事務並非公共事務，人民是統治者們的附屬品，另外朝鮮最高領導人為世襲產生。

按照政府體制分類的共和國列表

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