Check (pattern) a board used for playing checkers and chess, and in heraldry. The check pattern has a number of symbolic meanings. In auto racing, the chequered flag is displayed at the finishing line to signal that the race has finished. It originates from the "checkers" who watched the finishing line and checked when cars had finished the race. They began using chequered flags to identify themselves. In some countries, the check pattern has become a symbol of the police. Known as "Sillitoe Tartan", it was first used in Glasgow in the 1930s and was inspired by a pattern worn by some
World Police and Fire Games Northern Ireland, and ending with Glasgow, Scotland, hosting the 2014 Commonwealth Games - the first time all three events have been hosted by the same nation consecutively. The host city of the 2015 World Police and Fire Game was Fairfax County, Virginia, in the United States, with venues located around the Washington metropolitan area. The California Police Olympics were first held in 1967. The concept evolved over the years and led to the creation of the World Police & Fire Games Federation—a non-profit organization, run by the Californian Police Athletics Federation—in 1983. Two years later, in 1985, the first World