The Argentine Primera División, commonly known as the Liga Profesional de Fútbol or simply Division 1, is the top tier of Argentine football and one of the most historic and passionate leagues in the world. Founded in 1891, it is the oldest professional league outside the British Isles. Based in Argentina, the league operates a unique format, often splitting the season into separate tournaments like the Liga Profesional and the Copa de la Liga, with an aggregate table determining continental qualification. It features famous clubs like Boca Juniors, River Plate, Independiente, and Racing Club. The league is renowned for its intense superclásico rivalry, producing world-class talent through its prolific youth academies. The championship is fiercely contested, with the winner earning the title of Argentine champion and a place in the Copa Libertadores.