How many sports are there in the world?

Competition in the 2004 Summer Olympics included:

Archery

Athletics (Track and Field)

Badminton

Basketball

Boxing

Canoeing

Cycling

Diving

Equestrian

Fencing

Field Hockey

Football/Soccer

Gymnastics

Handball

Judo

Modern pentathlon

Rowing

Sailing

Shooting

Softball

Swimming

Synchronized swimming

Table tennis

Taekwondo

Tennis

Triathlon

Volleyball

Water polo

Weightlifting

Wrestling