On This Day: Bolt's Achievement, London Olympics, and Other Events

A look back at significant events that happened on this day in history:

2012: Usain Bolt won the gold medal in the 100 meters at the London Olympics with an Olympic record (9.63), retaining his title.

2012: For the first time, women competed in all sports at the Olympics, with boxing included in the program.

2012: Charles Ainslie became the first sailor to win a medal in 5 Olympics, winning in the Finn category.

1997: Tasoula Kelesidou was eliminated from the discus final at the World Athletics Championships but later excelled in other events.

1997: Panagiotis Stroubakos qualified for the 800m semifinals at the World Athletics Championships, the first Greek to do so in a middle-distance race.

1991: ESAC was founded, establishing professional basketball in Greece.

1991: Soichiro Honda, founder of Honda, passed away.

1978: Pittodrie, the first all-seater stadium in Great Britain, was inaugurated.

1970: Manchester United won their first penalty shootout.

1936: Jesse Owens won his third gold medal at the Berlin Olympics.

1921: The first major league baseball game was broadcast on the radio.