1887 – Philadelphia celebrates the 100th anniversary of the United States Constitution.
1913 – First milch goat show held in Rochester, New York.
1917 – Forbes Magazine founded by B.C. Forbes and Walter Drey.
1928 – Scottish bacteriologist Alexander Fleming discovers penicillin while sorting through Petri dishes containing colonies of the bacteria Staphylococcus.
1938 – Only time brothers hit back-to-back home runs when Lloyd and Paul Waner do it for the Pittsburgh Pirates.
1942 – United States aircraft carrier Wasp torpedoed at Guadalcanal.
1944 – United States Marines land on islands of Palau and Morotai in the western Pacific during World War II.
1949 – “Lone Ranger” premieres on ABC-TV.
1959 – Soviet Premier Nikita Khrushchev arrives in the United States to begin a 13-day visit. It’s the first state visit of a Soviet or Russian leader to the United States.
1961 – 61st United States Golf Amateur Championship won by 21-year-old Jack Nicklaus.
1963 – Church bombing in Birmingham, Alabama, kills four African-American girls.
1966 – President Lyndon B. Johnson, responding to a sniper attack at the University of Texas at Austin, writes a letter to the United States Congress urging enactment of gun control legislation.
1970 – Decca awards Bing Crosby a second platinum disc for selling 300 million records.
1978 – The Los Angeles Dodgers become the first major league team to draw 3 million fans for a season.
1987 – Pope John Paul arrives in Los Angeles for a two-day papal visit and addresses entertainment leaders.
1997 – Google.com is registered as a domain name.
1997 – Oprah Winfrey announces she will continue her show through 2000.
2011 – Ford Motor Company closes St. Thomas Assembly automobile plant in Southwold, Ontario, after 44 years, resulting in the loss of roughly 1,400 jobs.
2020 – Family of Breonna Taylor announces $12 million wrongful death settlement with City of Louisville, Kentucky, after her death in a botched police raid March 13.
2022 – Tennis great Roger Federer announces his retirement from professional tennis at age 41 with 20 grand slam wins and 103 ATP titles.