Nacional is a result of the fusion between Montevideo Football Club and Uruguay Athletic Club, 14 May 1899. It was decided there that the club's flag Club football in Uruguay is dominated by two big Montevideo clubs, Peñarol and Nacional, which compete in the AUF Championships (Primera División).[13] Peñarol won the tournament in 50 times (including titles by its predecessor, CURRC) and Nacional 45 times, since it began in 1900.