1992 - The Olympic Round archery format is established at the Olympics in Barcelona.

Athletics (Track & Field)

776 B.C. - Athletics are part of the first ancient Olympic games in Greece.

1896 - Athletics are part of the first modern Olympics in Athens. Competitions included are 100m, 1,500m, 110m hurdles, Marathon, long jump, triple jump, pole vault, discus, shot put and high jump.

1924 - Women's athletics events are added to the Olympics in Amsterdam. Competitions included are 100m, 800m, 4 x 100m, high jump and discus.

1984 - Women's marathon is added to the Olympic games in Los Angeles.

2008 - The women's 3000 meter steeplechase debuts as an Olympic event.

Badminton

1992 - Badminton is added to the Olympics in Barcelona.

Baseball

1992 - Baseball is added to the Olympics in Barcelona.

2012 - Baseball is dropped from the Olympics in London.

Basketball

1904 - Basketball is an exhibition event at the Olympics in St. Louis.

1936 - Men's basketball is added to the Olympics in Berlin.

1976 - Women's basketball is added to the Olympics in Montreal.

1992 - Participation rules are changed to allow professional basketball players to participate on the Olympic teams.

Boxing

688 B.C. - Boxing is added to the ancient Olympic games.

1896 - A committee decides that boxing is too dangerous for the modern Olympic games.