[PAR] [TLE] Estadio Azteca [SEP] The Estadio Azteca (] ) is a football stadium located in the suburb of Santa Úrsula in Mexico City, Mexico.  Since its opening in 1966, the stadium has been the official home stadium of the professional Mexican football team América and the official national stadium of the Mexico national football team.  With an official capacity of 87,000, it is the largest stadium in Mexico.  The stadium sits at an altitude of 7,200 feet above sea level. [PAR] [TLE] 1983 FIFA World Youth Championship [SEP] The 1983 FIFA World Youth Championship, the fourth edition of the FIFA World Youth Championship, was held in Mexico from June 2 to June 19, 1983.  The tournament took place in seven venues — Guadalajara, Irapuato, León, Mexico City, Monterrey, Puebla and Toluca — where a total of 32 matches were played.  The winner was Brazil, who beat Argentina by 1–0, in a final held at Mexico City's Azteca Stadium.
[PAR] [TLE] Estadio Azteca [ SEP ] The Estadio Azteca ( ] ) is a football stadium located in the suburb of Santa Úrsula in Mexico City , Mexico . Since its opening in 1966 , the stadium has been the official home stadium of the professional Mexican football team América and the official national stadium of the Mexico national football team . With an official capacity of 87,000 , it is the largest stadium in Mexico . The stadium sits at an altitude of 7,200 feet above sea level . [PAR] [TLE] 1983 FIFA World Youth Championship [ SEP ] The 1983 FIFA World Youth Championship , the fourth edition of the FIFA World Youth Championship , was held in Mexico from June 2 to June 19 , 1983 . The tournament took place in seven venues — Guadalajara , Irapuato , León , Mexico City , Monterrey , Puebla and Toluca — where a total of 32 matches were played . The winner was Brazil , who beat Argentina by 1–0 , in a final held at Mexico City 's Azteca Stadium .
What year did the stadium where the 1983 FIFA World Youth Championship final was held open in?
What year did the stadium where the 1983 FIFA World Youth Championship final was held open in ?
1966
1966