The modern Olympic era began in 1894 when Frenchman Baron Pierre de Coubertin decided to revive the ancient Greek tradition of celebrating health, youth and peace with a sports festival. Baron de Coubertin created the International Olympic Committee (IOC) and the first modern Olympiad took place in Athens. Since then the Olympic Games have been held every four years with only two exceptions because of the two world wars. Even though the modern Olympic Games embrace the whole world, the connection with Greece is still very strong. A lighted torch is brought all the way from Greece, carried by a relay of runners, in order to light the Olympic Flame which burns all through the Games. As in ancient Greek times, the competitors still take the Olympic Oath. The long-distance race is still called the Marathon. Marathon was a village about 26 miles from Athens. In the year 490 BC the Greeks defeated a powerful Persian army at that spot. After the fierce day's fighting a soldier volunteered to bring news of the victory to the anxious citizens of Athens. He ran all the way and after gasping out the message. "Rejoice, we conquer! " he collapsed and died. One important rule of the Olympic Games is that the competitors must be amateurs. This rule has been under a lot of pressure in recent years because modern sport is so professional and competitive. Athletes train for years to take part in the Olympics and some countries spend much more than others on equipment and facilities. But despite these pressures, the amateur rule remains. In modern times the Olympic movement has become an enormous and expensive organization. It is controlled by the International Olympic Committee, which consists of members from all the participating countries. The IOC is based in Lausanne, Switzerland. It chooses the locations of both summer and winter games (both take place once every four years, with winter games half a year before summer Olympiads). It also controls the rules of the competitions and selects new Olympic sports.