Rugby league<SUP class=reference id=cite_ref-0>
[1]</SUP><SUP class=reference id=cite_ref-1>
[2]</SUP><SUP class=reference id=cite_ref-2>
[3]</SUP> is a
full-contact team sport, played with an
oval ball<SUP class=reference id=cite_ref-3>
[4]</SUP> by two teams of thirteen players on a rectangular grass field. Rugby league is one of the two codes of
rugby football, the other being
rugby union.
The league code is most prominent in
Australia,
England,
New Zealand,
France and
Papua New Guinea (where it is considered the national sport). It is also played professionally in
France,
Wales and the
United States.
New Zealand are the current World Cup holders. The game is played at a semi-professional and amateur level in several other countries, such as
Samoa,
Tonga,
Fiji,
Ireland,
Scotland,
Russia,
Lebanon,
Germany,
Japan,
United States,
Malta and
Jamaica.
Rugby league takes its name from the Rugby Football League, which was established in 1895 as the
Northern Rugby Football Union, a breakaway faction of the English
Rugby Football Union (RFU). Both organisations played the game under similar rules at first, until similar breakaway factions occurred from RFU-affiliated rugby football unions in Australia and New Zealand in 1907 and 1908, and formed associations known as
rugby football leagues, introducing modified Northern Union rules to create a new form of rugby football. The Northern Union later changed its name to the
Northern Rugby Football League in 1922 (later dropping the 'Northern') and thus, over time the sport itself became known as "rugby league". Over the following decades, the rules of both forms of rugby were gradually changed, and now rugby league and rugby union are distinctly different sports.