1758 French astronomer Charles Messier mistakenly identifies the Crab Nebula so begins his Messier Catalogue 1909 World's first patent for synthetic rubber granted to German chemist Fritz Hofmann 1933 Leó Szilárd, waiting for a red light on Southampton Row in Bloomsbury, conceives idea of a nuclear chain reaction 1940 Four teens, following their dog down a hole near Lascaux, France discover 17,000 year old drawings now known as the Lascaux Cave Paintings 1958 US Supreme Court orders the all-white Central High School in Little Rock, Arkansas to integrate 1959 Luna 2 launched by USSR; 1st spacecraft to impact on the Moon | 
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