According to the events schedule on the official London 2012 Olympics website, the first sport to take place at the 2012 Olympics will be women's football, which will begin on July 25.
Golf and Rugby will be the newest Olympic sport at the summer Olympics in London in 2012.
snowboard cross is the sport introduced at the winter Olympics 2010
There are 534 US athletes in the London Olympics
The first sport that will be featured in the 2012 Olympics is Women's football.
Gymnastics is a summer Olympics sport not a winter Olympics sport. Gymnastics will next be in the London Olympics in 2012 and the Rio Olympics in 2016.
baseball and softball
Taekwondo is a confirmed sport for both the London 2012 Olympics and the Rio 2016 Olympics.
Gymnastics is a summer Olympics sport not a winter Olympics sport. Gymnastics will next be in the London Olympics in 2012 and the Rio Olympics in 2016.
That would have depended on the sport you want to try out for.
womens boxing
badminton
Eric Murray competed in the sport of rowing during the 2012 London Olympics. He was a gold medal winner in the Men's coxless pair competition.