On This Day: September 9

5 verified moments happened on September 9. Here they are in the order they actually happened — the same kind of puzzle you solve in Whensly every day.

1. 1850🐻 California enters the Union as the thirty-first state without ever passing through territorial status, a centerpiece of the year's sweeping sectional compromise.USA 250 · Source: HISTORY.com, California becomes the 31st state (Sep 9 1850)
2. 1965Sandy Koufax throws a perfect game against the Cubs — 14 strikeouts, zero walks — on the same night Bob Hendley throws a one-hitterSports · Source: Wikipedia, "Sandy Koufax's perfect game"; Baseball-Reference (Sep 9, 1965)
3. 1965Sandy Koufax pitches a perfect game against the Cubs, his fourth career no-hitterSports · Source: SABR 'September 9, 1965: A million butterflies and one perfect game for Sandy Koufax'; Wikipedia 'Sandy Koufax's perfect game'
4. 1966David Pearson stacks up another short-track win at Hickory in the season that brings him a first championshipStock Car Racing · Source: Wikipedia, “1966 Buddy Shuman 250” — Hickory Speedway, Sep 9, 1966
5. 1999🎮 Sega launches the Dreamcast in North America on its famous nine-nine-ninety-nine date.Technology · Source: Wikipedia, 'Dreamcast'; Time Extension (Sep 9 1999)