1896 - Football is an exhibition event at the first modern Olympics in Athens.

1908 - Football is added to the Olympic games in London.

1984 - Participation rules are changed to allow professional football players to participate on the Olympic teams.

Golf

2016 - Golf will make its debut at the 2016 Olympics in Rio de Janeiro.

Gymnastics

1896 - Men's artistic gymnastics is part of the first modern Olympics in Athens. The men compete in six apparatus: horizontal bar, parallel bars, pommel horse, rings, vault, and rope climbing.

1928 - Women's artistic gymnastics is added to the Olympics in Amsterdam.

1936 - Men's artistic gymnastics individual events are changed to include floor exercises, side horse (pommel horse), rings, parallel bars, horizontal bar and long horse (vault) at the Olympics in Berlin.

1952 - Women's artistic gymnastics individual events introduce the four apparatus format: vault, uneven bars, balance beam, and floor exercises at the Olympics in Helsinki.

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

1996 - Rhythmic gymnastics is added to the Olympics in Atlanta.

2000 - Trampoline is added to the Olympics in Sydney.

Handball

1936 - Handball is an exhibition event at the Olympic games in Berlin.

1972 - Handball is added to the Olympics in Munich.

Hockey

1908 - Field Hockey is added to the Olympics in London.

Judo

1964 - Men's judo becomes the first Asian sport to be added to the Olympics in Tokyo.