International Tug-of-War Day celebrates tug of war, a game where two 
teams compete, trying to pull a rope so that a center marker comes to 
their team's side. Sometimes a puddle of mud or pool of water is put in 
the middle, so that the losing team will be pulled into it. Usually each
 team has eight members, although other numbers are possible. At times 
it has even been a two person sport, and in Taiwan in 1997, there were 
1,600 participants in one game.
Tug of war was played in ancient Egypt, Greece, China, and India. It 
originated in ancient ceremonies, and then came to be used to train 
warriors, entertain kings, and settle disputes. Sometimes it was used as
 a game to train for others sports. In some circumstances, a wooden 
stake has been used instead of a rope.
Over 50 countries have formal national tug of war organizations; 
there are tug of war clubs, and outdoor and indoor competitions. Tug of 
war was an Olympic sport from 1900 until 1920, when a decision was made 
to have less participants in the Olympic games, and the sport was 
cancelled. The Tug of War International Federation
 was created in 1960 out of a need for international competition, and 
shortly thereafter, a competition was held in Sweden. In 1965, the first
 European Championships began being held in England, and continued until
 1975, when countries outside of Europe joined to create the first World
 Championships, held in the Netherlands. Today, World Championships are 
held every other year, with European Championships in the intervening 
years. In 1999, the Tug of War International Federation received 
provisional recognition from the International Olympic Committee, and in
 2002, they received formal recognition. As of late there has been a push to bring tug of war back into the summer Olympics.