I always liked the Mark Twain and Halley’s Comet coincident:

Mark Twain was born on the day of the appearance of Halley’s Comet in 1835, and died on the day of its next appearance in 1910. He himself predicted this in 1909, when he said: “I came in with Halley’s Comet in 1835. It is coming again next year, and I expect to go out with it.”

More here.