2004 Summer Olympics opening ceremony 2004 Summer Olympics opening ceremony The opening ceremony of the 2004 Summer Olympic Games was held on August 13, 2004 at the Olympic Stadium in Maroussi, Greece, a suburb of Athens. 72,000 spectators attended the event, with approximately 15,000 athletes from 202 countries participating in the ceremony as well. It marked the first-ever international broadcast of high definition television, undertaken by the U.S. broadcaster NBC and the Japanese broadcaster NHK. The opening ceremony began with a twenty-eight second countdown—one second per Olympics held since Athens last hosted the first modern games—paced by the sounds of an amplified heartbeat played by
Olympic Games by 44 cities in 23 countries, but by cities outside Europe and North America on only eight occasions. Since the 1988 Summer Olympics in Seoul, South Korea, the Olympics have been held in Asia or Oceania four times, a sharp increase compared to the previous 92 years of modern Olympic history. The 2016 Games in Rio de Janeiro were the first Olympics for a South American country. No bids from countries in Africa have succeeded. The United States has hosted eight Olympic Games, four Summer and four Winter, more than any other nation. The British capital London holds the distinction