Uruguay would triumph in this first edition after tying 0–0 with hosts Argentina in the deciding, last match held in Estadio Racing Club in Avellaneda. Seeing the success of the tournament, a boardmember of the Uruguayan Football Association, Héctor Rivadavia, proposed the establishment of a confederation of the associations of Argentina, Brazil, Chile and Uruguay, and on 9 July, independence day in Argentina, CONMEBOL was founded. The following year, the competition was played again, this time in Uruguay. Uruguay would win the title again to win their bicampeonato after defeating Argentina 1–0 in the last match of the tournament. The success of the tournament on Charrúan soil would help consolidate the tournament. After a flu outbreak in Rio de Janeiro canceled the tournament in 1918, Brazil hosted the tournament in 1919 and was crowned champion for the first time after defeating the defending champions 1–0 in a playoff match to decide the title, while the Chilean city of Viña del Mar would host the 1920 event which was won by Uruguay. For the 1921 event, Paraguay participated for the first time after its football association affiliated to CONMEBOL earlier that same year. Argentina won the competition for the first time thanks to the goals of Julio Libonatti. In subsequent years, Uruguay would dominate the tournament, which at that time was the largest football tournament in the world. Argentina, however, would not be far behind and disputed the supremacy with the Charruas. After losing the 1928 final at the 1928 Summer Olympics held in Amsterdam, Argentina would gain revenge in the 1929 South American Championship by defeating the Uruguayans in the last, decisive match. During this period, both Bolivia and Peru debuted in the tournament in 1926 and 1927, respectively. Disorganization and intermittency After the first World Cup held in Uruguay in 1930, the enmity between the football federations of Uruguay and Argentina prevented the competition from being played for a number of years. Only in 1935 was it possible to dispute a special edition of the event to be officially reinstated in 1939. Peru became the host nation of the 1939 edition and won the competition for the first time. Ecuador made their debut at that tournament. In 1941, Chile hosted that year's edition in celebration of the 400th anniversary of the founding of Santiago for which the capacity of the newly built Estadio Nacional was expanded from 30,000 to