It is the 124th day of the year, with only 241 days remaining.
1863 - The Battle of Chancellorsville ends with a Union defeat and retreat.
1871 - The National Association, the first professional baseball league, opens its first season in Fort Wayne, Indiana.
1886 - A bomb is thrown at policemen trying to break up a labor rally in Chicago, Illinois, killing eight and wounding 60. It is known as the Haymarket Sqaure Riot.
1932 - In Atlanta, Georgia, mobster Al Capone begins serving an eleven-year prison sentence for tax evasion.
1953 - Ernest Hemingway wins the Pulitzer Prize for The Old Man and the Sea.
1959 - The 1st Grammy Awards are held.
1970 The infamous Kent State Shootings occur. The Ohio National Guard, sent to Kent State University after disturbances in the city of Kent the weekend before, opens fire killing four unarmed students and wounding nine others. The students were protesting the United States' invasion of Camobida.
1979 - Margaret Thatcher becomes the first female Prime Minister of the United Kingdom.
1989 - Former White House aide Oliver North is convicted of three crimes and acquitted of nine other charges. The convictions are later overturned on appeal.