Inventions, firsts, and turning points tied to today’s date — each one sourced and dated.
The fiery civil rights leader was gunned down mid-speech at Harlem's Audubon Ballroom, his pregnant wife and daughters watching from the front rows.
Land photographed a roomful of optical scientists and, sixty seconds later, peeled away a finished portrait—photography without a darkroom.
A slim anonymous pamphlet printed in London opened with class struggle and closed with a call to arms that would echo for a century.
