1925 - Scopes Trial: A law in Tennessee prohibits the teaching of evolution.
1720 - Charles Bonnet, Swiss naturalist and writer
1733 - Joseph Priestley, English scientist
1855 - Percival Lowell, American astronomer
1899 - John Hasbrouck van Vleck, American physicist and Nobel Prize laureate
1773 - Philibert CommerÃ§on, French naturalist and explorer
1990 - Bruno Bettelheim, American psychiatrist
Wow! A big day. Also: establishment of Time Zones and the Prime Meridian.