1789 – First US Presidential inaugural ball (for George Washington in NYC).
1877 – Cincinnati Enquirer first uses term “Bullpen” to indicate foul territory.
1912 – Columbia University approves plans for awarding the Pulitzer Prize in several categories, after established by Joseph Pulitzer.
1914 – US Congress establishes Mother’s Day.
1925 – Phillies have their 8th game postponed in a row.
1938 – 64th Kentucky Derby: Eddie Arcaro aboard Lawrin wins in 2:04.8.
1941 – Glenn Miller records “Chattanooga Choo Choo” for RCA.
1946 – Tokyo Telecommunications Engineering (later renamed Sony) is founded with around 20 employees.
1953 – “Can Can” opens at Shubert Theater NYC for 892 performances.
1959 – “Roy Campanella Night” largest baseball crowd (93,103 in LA Coliseum) sees Dodgers’ Sandy Koufax beat Yankees 6-2 in exhibition game.
1962 – Pulitzer prize awarded to Theodore H. White (Making of President 1960).
1966 – Mamas & Papas “Monday Monday” hits #1.
1975 – US President Gerald Ford declares an end to “Vietnam Era.”
1982 – IBM releases PC-DOS version 1.1.
1984 – $180m out-of -court settlement reached in Agent Orange suit.
1992 – Constitutional amendment barring mid-term congressional raises passes.
1998 – Mercedes-Benz buys Chrysler for $40 billion USD and forms DaimlerChrysler in the largest industrial merger in history.
2011 – “Pirates of the Caribbean: On Stranger Tides”, directed by Rob Marshall, starring Johnny Depp and Penelope Cruz, premieres in – opening weekend makes $350.6M.
2013 – Delaware becomes the 11th US State to legalize same-sex marriage.
2013 – The Dow Jones Industrial average and S&P 500 set record highs.