2007 FIFA U-20 World Cup: After the Argentina vs Chile semi-final game ended, a scuffle between Toronto Police officers and members of the Chilean team led to the arrest of 21 players.
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- A bus traveling to Chile overturns in Argentina's Mendoza Province, killing at least 19 people.
- An alert is issued after the Copahue stratovolcano, located on the border between Argentina and Chile, begins spewing ash.
- The governments of Chile and Argentina issue volcanic activity alerts in areas close to the Copahue volcano after it started spewing ash.
- Argentina grants asylum to the Chilean former leftist guerrilla Galvarino Apablaza, who has been charged in Chile with assassinating a senator, despite the Chilean government's request to extradite him.
- Prime Minister of Turkey Recep Tayyip Erdogan bypasses Argentina on his South American tour, opting to travel straight to Chile after Buenos Aires officials call off an event honouring Mustafa Kemal Ataturk due to what Turkey considers "hostile" interference from Armenian pressure groups.
- Bolivian President Evo Morales expresses concern in La Paz about the possibility that the "Pinochetistas" in Chile and the "fascist right" in Argentina could win the general elections in those countries and that it "would be very serious for Latin American democracy and for South America".
- Argentina and Chile reject the United Kingdom's claims on Antarctic territory.
- On the country's Independence Day, snow falls in Buenos Aires, Argentina, for the first time in 89 years and the second time in recorded history. Two people die of exposure in Argentina while one person dies in Chile.
- 2007 FIFA U-20 World Cup Final: Argentina defeated the Czech Republic 2-1 to win its sixth World Cup title.
- Chilean President Michelle Bachelet sends a bill to Congress for the legalization of same-sex marriage in Chile and adoption by same-sex couples, two years after recognizing civil unions for both same-gender and different-gender couples.