1809 – Mary Kies is 1st woman issued a US patent (weaving straw).
1847 – American Medical Association organized (Philadelphia).
1891 – Music Hall (Carnegie Hall) opens in New York, Tchaikovsky is guest conductor.
1900 – “The Billboard” began weekly publication.
1920 – US President Woodrow Wilson makes Communist Labor Party illegal.
1934 – 60th Kentucky Derby: Mack Garner aboard Cavalcade wins in 2:04.
1941 – First modern perfume, Chanel No. 5 released.
1942 – US begins rationing sugar during WW II.
1943 – Postmaster General Frank C. Walker invents Postal Zone System.
1948 – 1st squadron of jet aircraft aboard a carrier.
1955 – “Damn Yankees” opens at 46th St. Theater NYC for 1022 performances.
1961 – Alan Shepard becomes 1st American in space (aboard Freedom 7).
1969 – Pulitzer prize awarded to Norman Mailer (Armies of the Night).
1979 – 105th Kentucky Derby: Ron Franklin on Spectacular Bid wins in 2:02:4.
1986 – Hall of Fame & Museum announced to be built in Cleveland.
1995 – Last basketball game at Boston Gardens (Magic beats Celtics).
1997 – “Married With Children” final episode on Fox TV.
1999 – 34th Academy of Country Music Awards: Garth Brooks, Faith Hill & Tim McGraw win.
2013 – 5 people are killed after a limousine catches fire in Hayward, California.
2015 – Archaeornithura meemannae, the oldest known prehistoric bird, is discovered.