1808 – John Jacob Astor incorporates the American Fur Company.
1888 – George Eastman begins selling his Kodak flexible rolled film for the first time.
1893 – Andy Bowen & Jack Burke box 7 hours, 19 minutes to no decision (111 rounds)
1909 – 1st credit union forms in US.
1912 – Electric starter 1st appeared in cars.
1917 – US declares war on Germany, enters World War I.
1930 – Hostess Twinkles invented by bakery executive James Dewar.
1931 – 1st broadcast of “Little Orphan Annie” on NBC-radio.
1931 – “A Connecticut Yankee” film based on novel by Mark Twain, directed by David Butler, starring Will Rogers is released.
1938 – Teflon invented by Roy J. Plunkett.
1943 – British and US armies link up in Africa during WW II.
1952 – 16th US Masters Tournament, Augusta National GC: Sam Snead wins his second green jacket by 4 strokes over Jack Burke, Jr.
1959 – 31st Academy Awards: “Gigi”, Susan Hayward & David Niven win.
1968 – Gas and powder explosions at sporting goods store, downtown Richmond, Indiana, kills 41 and injures more than 150.
1977 – Kingdom opens, Seattle Mariners 1st game, lose to Angels 7-0.
1984 – 11th Space Shuttle Mission (41-C) Challenger 5 is launched.
1987 – 22nd Academy of Country Music Awards: Hank Williams Jr, Randy Travis, and Reba McEntire win.
1992 – 54th NCAA Men’s Basketball Championship: Duke beats Michigan, 71-51; back-to-back titles for Blue Devils and coach Mike Krzyzewski.
1992 – Microsoft announced Windows 3.1, upgrading Windows 3.0.
2009 – 71st NCAA Men’s Basketball Championship: North Carolina beats Michigan State, 89-72: Tar Heels 5th national title; Ty Lawson 21 points.
2016 – US primary elections: Wisconsin won by Democrat Bernie Sanders and Republican Ted Cruz.