1819 – 1st successful agricultural journal (“American Journal”) first publishes.
1827 – US inventor Joseph Dixon of Salem, Massachusetts, begins manufacturing lead pencils.
1866 – US President Andrew Johnson ends civil war in Alabama, Arkansas, Florida, Georgia, Mississippi, Louisiana, North Carolina, South Carolina, Tennessee & Virginia.
1877 – 1st Easter egg roll held on White House lawn.
1908 – Mills Committee declares baseball was invented by Abner Doubleday.
1921 – Albert Einstein lectures in New York City on his new “Theory of Relativity”
1932 – Charles Lindbergh turns over $50,000 as ransom for his kidnapped son.
1945 – 1st US units reach east coast of Okinawa.
1958 – Wind speed reaches a record 450 kph in tornado, Wichita Falls, Texas.
1963 – Explorer 17 attains Earth orbit (254/914 km)
1968 – “2001 A Space Odyssey” directed by Stanley Kubrick and starring Keir Dullea and Gary Lockwood, premieres at the Uptown Theater in Washington, D.C.
1973 – CBS radio begins on the hour news, 24 hours a day.
1977 – Fleetwood Mac’s “Rumors” album goes #1 & stays #1 for 31 weeks.
1978 – TV soap show “Dallas” starring Larry Hagman and Barbara Bel Geddes premieres on CBS (as a 5 week mini-series).
1978 – Velcro was 1st put on the market.
1986 – George Corley Wallace (Gov-D-Ala) announces retirement plans.
1990 – 52nd NCAA Men’s Basketball Championship: Nevada-LV beats Duke 103-73.
1995 – WrestleMania XI in Conn-Lawrence Taylor defeats Bam Bam Bigelow.
2006 – Over 60 tornadoes break out, hardest hit is Tennessee with 29 people killed.
2010 – Kobe Bryant signs a three-year contract extension with the Los Angeles Lakers worth $87 million.