22nd June

On this day in 1633, under the threat of torture, Galileo was forced by the Inquisition to recant Copernicanism and was sentenced to life imprisonment, though the sentence was carried out somewhat sympathetically and it amounted to house arrest rather than a prison sentence.
See THIS LINK.

On this day in 2010 Google released a Zuse doodle

The postage stamp of one of today's mathematicians at THIS LINK was issued in 2009.