Home Nations is a collective term with one of two meanings depending on context. Politically it means the nations of the constituent countries of the United Kingdom. In sport, if a sport is governed by a council representing the island of Ireland, such as the Irish Rugby Football Union, the term can refer to the nations of the constituent countries on the island of Great Britain and the Irish nation. Formerly, the term was applied in general in this same wider sense, such as the period between 1801 and 1922, when the whole island of Ireland was part of the United Kingdom. The synonymous "Home Countries" is also sometimes used. The term has yet a third meaning in the context of British Cycling, where it refers collectively to the seven teams representing the four constituent countries of the United Kingdom plus the three Crown Dependencies that participate in the Commonwealth Games. The Crown Dependencies are not part of the United Kingdom, but are politically associated with it, and together make up the British Islands.
In 1883, the first Home Nations Championship was played between England, Ireland, Scotland and Wales. At this point in its history, the competition contained only teams from the UK. In 1910, France officially joined the competition and it was renamed the Five Nations Championship. Despite the partition of Ireland and the secession of the Republic of Ireland from the United Kingdom, the island of Ireland still fields a single sports team and is referred to as a Home Nation in the context of rugby union. When France was expelled from the international championship in 1932, the tournament reverted to being known simply as the Home Nations tournament until the readmission of France immediately after the 1939 tournament, just before World War II caused its suspension until 1947. Since the admission of Italy in 2000, the tournament has been known by its current name, the Six Nations Championship. Victories by any Home Nation over all of the other three Home Nations in one Championship season is a Triple Crown. The Home Nations also contribute players to a unified team known as the British and Irish Lions. Southern Hemisphere teams who beat all four home nations in one tour are said to have a Grand Slam Tour.
Rugby league
The Amateur Four Nations competition in rugby league, run annually from 2002 to 2007 for the A sides of Wales, England, Scotland and Ireland, was also referred to as the "home nations championship".