30th July 1930 was the day, when the world had its first ever football champion nation Uruguay.
A quick look over the history :
The resounding wins for Uruguay and Argentina in the semi-finals meant the final was a repeat of the matchup in the 1928 Olympic final, which Uruguay had won 2–1 after a replay.
The final was played at the Estadio Centenario on 30 July. Feelings ran high around the La Plata Basin as the Argentine supporters crossed the river with the war cry Victoria o muerte (“victory or death”), dispelling any uncertainty as to whether the tournament had captured the imagination of the public. The ten boats earmarked to carry Argentine fans from Buenos Aires to Montevideo proved inadequate, and any number of assorted craft attempted the crossing. An estimated 10–15,000 Argentinians made the trip, but the port at Montevideo was so overwhelmed that many did not even make landfall before kick-off, let alone reach the stadium. At the stadium, supporters were searched for weapons. The gates were opened at eight o’clock, six hours before kick-off, and at noon the ground was full, the official attendance 93,000. A disagreement overshadowed the build-up to the match as the teams failed to agree on who should provide the match ball, forcing FIFA to intervene and decree that the Argentine team would provide the ball for the first half and the Uruguayans would provide their own for the second. Uruguay made one change from their semi-final line-up. Castro replaced Anselmo, who missed out due to illness. Monti played for Argentina despite receiving death threats on the eve of the match. The referee was Belgian John Langenus, who only agreed to officiate a few hours before the game, having sought assurances for his safety. One of his requests was for a boat to be ready at the harbour within one hour of the final whistle, in case he needed to make a quick escape.
The hosts scored the opening goal through Pablo Dorado, a low shot from a position on the right. Argentina, displaying superior passing ability, responded strongly. Within eight minutes they were back on level terms; Carlos Peucelle received a Ferreira through-ball, beat his marker and equalised. Shortly before half-time leading tournament goalscorer Guillermo Stábile gave Argentina a 2–1 lead. Uruguay captain Nasazzi protested, maintaining that Stábile was offside, but to no avail. In the second half Uruguay gradually became ascendant. Shortly after Monti missed a chance to make the score 3–1, Uruguay attacked in numbers, and Pedro Cea scored an equaliser. Ten minutes later a goal by Santos Iriarte gave Uruguay the lead, and just before full-time Castro made it 4–2 to seal the win. Langenus ended the match a minute later, and Uruguay thus added the title World Cup winners to their mantle of Olympic champions. Jules Rimet presented the World Cup Trophy, which was later named for him, to the head of the Uruguayan Football Association, Raúl Jude. The following day was declared a national holiday in Uruguay; in the Argentinian capital, Buenos Aires, a mob threw stones at the Uruguayan consulate. Francisco Varallo (who played as a forward for Argentina) was the last player of the final to die, on 30 August 2010.
France, Yugoslavia and the United States all played friendlies in South America following the competition. Brazil played France on 1 August, Yugoslavia on 10 August and the United States on 17 August, while Argentina hosted Yugoslavia on 3 August.
Uruguay’s aggregate goal difference of +12 over four games, at an average of +3 per match, remains the highest average goal difference per match of any World Cup champion, and the second highest of any World Cup Finals participant, after Hungary in 1954.