1769 – Daniel Boone begins exploring Bluegrass, State of Kentucky.
1860 – Workmen start laying track for Market Street Railroad, San Francisco.
1864 – Abraham Lincoln re-nominated for US President by the Republican Party.
1912 – US Army tests 1st machine gun mounted on a plane.
1917 – Melvin Jones and a number of other Chicago businessmen found Lions Club International, now the largest service organization in the world.
1936 – Charles “Lucky” Luciano is convicted on 62 counts of compulsory prostitution.
1937 – Time magazine publishes the second of the only two known photos taken of the United States Supreme Court in session.
1938 – Boeing 314 Clipper flying boat 1st flown (Eddie Allen)
1938 – The Douglas DC-4E makes its 1st test flight.
1942 – Battle of Midway ends: Admiral Chester Nimitz wins 1st World War II naval defeat of Japan.
1953 – 1st color network telecast in compatible color (Boston, Massachusetts)
1965 – Gemini 4 completes 62 orbits.
1965 – The Supreme Court of the United States decides on Griswold v. Connecticut, effectively legalizing the use of contraception by married couples.
1968 – The body of assassinated U.S. Senator Robert Kennedy lies in state at St. Patrick’s Cathedral, New York.
1980 – Tommy John wins his 200th, 3-0 on a 2-hitter.
1982 – US President Ronald Reagan meets with Pope Paul II at Vatican City, Rome and later Queen Elizabeth II.
1995 – The long range Boeing 777 enters service with United Airlines.
1998 – James Byrd, Jr. is dragged to death by Shawn Allen Berry, Lawrence Russell Brewer, and John William King in Jasper, Texas in a racially-motivated hate crime.
2001 – BP announces that it will build a new $600-million platform offshore Trinidad that is expected to double the company’s production of natural gas there by 2014.
2018 – Baltimore ex-police Sgt. Wayne Earl Jenkins, head of a rogue police unit sentenced to 25 years for robbery and racketeering.