Saturday's events include qualifying rounds in badminton, basketball, beach volleyball, boxing, equestrian, gymnastics, handball, rowing, soccer, table tennis, and tennis -- plus medal events in archery, cycling, fencing, judo, shooting, swimming, and weightlifting.
Here are some of the best photos from day one of the 2012 Summer Olympic Games. Be sure to check back as we'll be updating them throughout the day.
Earlier on HuffPost:
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