Inventions, firsts, and turning points tied to today’s date — each one sourced and dated.
A dying dentist volunteered to live tethered to a machine so doctors could learn whether a mechanical heart could keep a person alive.
On a December morning in 1971, six Persian Gulf emirates signed away their separate futures to build one young federation.
In a squash court beneath Chicago's Stagg Field, humanity first tamed the atom.
Six weeks after his failed raid on Harpers Ferry, a fierce abolitionist met the gallows and became a martyr to a divided nation.
With the Pope looking on, Napoleon took the crown into his own hands and made the gesture of his reign unmistakable.
