On this day

7th January 1610	Galileo observes Jupiter’s moons
12th February 1809	Charles Darwin born
13th March 1781	Uranus discovery announced
14th March 1835	Giovanni Schiaparelli born
6th April 1992	Isaac Azimov died
12th April 1961	Juri Gagarin space flight
17th April 1996	Piet Hein died
14th June 1822	Charles Babbage proposes building computer
30th June 1908	The Tunguska Event
10th August 1675	Royal Observatory, Greenwich founded
28th September 1928	Alexander Flemming discovers penicillin
6th November 1940	Galloping Gertie collapses
30th November 1934	Flying Scotsman 100 mph
10th December 1815	Ada Lovelace born
27th December 1571	Johannes Kepler born