Inventions, firsts, and turning points tied to today’s date — each one sourced and dated.
A magnitude 6.9 quake hit the San Francisco Bay Area minutes before a World Series game, knocking the broadcast off the air.
Queen Elizabeth II flipped the switch at Calder Hall in 1956, sending nuclear electricity to a national grid for the first time.
A burst brewery vat unleashed a wave of porter through a London slum in 1814, killing eight people.