12th August

Pierre Gassendi produced an anonymous pamphlet attempting to reassure the people of Paris that a predicted eclipse of the sun on this day in 1654 would not lead to a disaster. He was not entirely successful as many of the inhabitants of Paris hid in their cellars on this day.

On this day in 2013 Google released a Schrödinger doodle.

The postage stamp of one of today's mathematicians at THIS LINK was issued in 1987.