Inventions, firsts, and turning points tied to today’s date — each one sourced and dated.
A car-sized rover survived "seven minutes of terror" and a rocket-powered sky crane to reach Gale Crater.
A short newsgroup post invited anyone, anywhere to download the web's software and start linking the world.
Aboard Vostok 2 in 1961, cosmonaut Gherman Titov circled Earth for a full day and became the first human to fall asleep in orbit.
At 8:15 a.m., a single uranium bomb leveled most of a city and opened the nuclear age.
She didn't just cross the Channel as the first woman, she did it faster than every man who had ever managed the feat before her.
