Bicycle racing, also called cycling, is one of the most popular sports in the world. Cycling is especially popular in Europe, where millions of fans follow the feats of great cyclists. Bicycle racing has been an event in the Olympic Games since the modern games originated in 1896. The United States Cycling Federation, in cooperation with the National Off-Road Bicycle Association and the U.S. Professional Racing Organization, controls most of the organized bicycle racing events in the United States.