Inventions, firsts, and turning points tied to today’s date — each one sourced and dated.
On a Puerto Rican afternoon in 1974, astronomers fired Earth's first deliberate interstellar postcard at a star cluster 25,000 light-years away.
Launched in November 1965, the Soviet Venera 3 fell silent before it struck Venus, yet still became the first craft to touch another world.
With 168 men, a Spanish conquistador sprang a trap in a highland plaza in 1532 and seized the ruler of an empire of millions.
