1988 - Table tennis is added to the Olympics in Seoul.

Taekwondo

1980 - The IOC officially recognizes taekwondo as an Olympic sport.

1988 and 1992 - Taekwondo is an exhibition event at the Olympic games in Seoul and Barcelona.

2000 - Taekwondo is officially added to the Olympic games in Sydney as a competitive event.

Tennis

1896-1924 - Tennis is included in the Olympic games.

1984 - Tennis is an exhibition event at the Olympic games in Los Angeles.

1988 - Tennis is reinstated at the Olympics games in Seoul.

Triathlon

Participants swim 1,500 meters, cycle 40 kilometers and run 10 km in succession.

1994 - The IOC officially recognizes the triathlon as an Olympic sport.

2000 - Triathlon is added to the Olympics in Sydney.

Volleyball

1964 - Men's and women's volleyball is added to the Olympic games in Tokyo.

1996 - Men's and women's beach volleyball is added to the Olympic games in Atlanta.

Weightlifting

1896 - Weightlifting is part of the first modern Olympics in Athens.

2000 - Women's weightlifting is added to the Olympics in Sydney.

Wrestling

776 B.C. - Wrestling is part of the first ancient Olympic games in Greece.

1896 - Greco-Roman wrestling is part of the first modern Olympics in Athens.

1904 - Freestyle wrestling is included in the Olympics.

1908 - After a brief hiatus, Greco-roman wrestling is reinstated in the Olympics.

2004 - Women's freestyle wrestling is added to the Olympics in Athens.