1897 – Born on the 25th of May in New York City.
1919 – In World War I, he served in the U.S. marines and in Paris won the light-heavyweight championship of the American Expeditionary Forces.
1922 – He defeated Battling Levinsky for the American light-heavyweight title, but lost it the same year to Harry Greb-the only fighter to defeat him in the professional ring, a defeat that he later avenged in four more fights against Greb. He was regarded as an extremely skillful boxer who excelled in defense.
1923 – He regained his title.
1926 – He defeated Jack Dempsey in a 10-round decision in Philadelphia and became the world heavyweight champion.
– He also had a brief acting career, starring in the movie The Fighting Marine.
1927 – In Chicago, he repeated this performance in a return bout with Dempsey; the decision was the subject of much controversy because of the famous "long count" after he was knocked down in the seventh round.
1928 – He well-proportioned, handsome, and intellectually inclined- he retired from the ring undefeated.
– He was elected as Ring Magazine’s first-ever Fighter of the Year.
1978 – Died on the 7th of November , aged 81, Tunney was interred in the Long Ridge Union Cemetery in Stamford, Connecticut.
1980 – Elected to the World Boxing Hall of Fame.
1990 – Inducted in the International Boxing Hall of Fame.
2001 – Inducted in the Marine Corps Sports Hall of Fame.