How many kinds of sports are there in the Olympic Games?

Like Athens Olympic Games, Beijing Olympic Games has 28 sports, including track and field, rowing, badminton, softball, basketball, football, boxing, kayaking, cycling, fencing, gymnastics, weightlifting, handball, hockey, judo, wrestling, water sports, modern pentathlon, baseball, equestrian, taekwondo, tennis and table tennis. Among the 302 events, some events have no sub-events, and the most sub-events are water events, including swimming, synchronized swimming, water polo and diving. Although there are no disciplines in track and field, there are 46 events, including 24 men's events and 22 women's events, which are the most gold medals in the Olympic Games. Followed by swimming, although there is no subject, there are 32 events, male and female 16.