1896 - Cycling is part of the first modern Olympics in Athens. The two events are road race and track cycling.
1996 - Mountain bike racing debuts at the Atlanta Olympics.
2008 - Bicycle Moto Cross (BMX) debuts as an Olympic event, for both men and women.
1900 - Jumping is added to the Olympic game in Paris.
1912 - Dressage and Eventing are added to Jumping as the three areas of equestrian events at the Olympics in Stockholm.
1952 - Participation rules are changed to allow non-cavalry officers to compete in the Olympics.
1896 - Fencing is part of the first modern Olympics in Athens.
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.
2016 - Golf will make its debut at the 2016 Olympics in Rio de Janeiro.
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.
1936 - Handball is an exhibition event at the Olympic games in Berlin.