By the 1967 FIBA World Championship in Uruguay, the Summer Olympics and the continental championships in Europe, Central America, South America and Asia became established as qualifying tournaments. The two North American nations, the United States and Canada, could still only qualify via the Olympics or via invitation; Mexico participated via the Centrobasket, which it hosted the inaugural tournament. In the next tournament in the 1970 FIBA World Championship in Yugoslavia, the African champion was given an automatic berth, and regions which didn't have qualifying tournaments, Oceania and North America, were granted invitations. In the 1974 FIBA World Championship, the reigning world champions replaced the Summer Olympics champions on the automatic berth, with the Oceanian champion also qualifying outright; the two North American teams, and the were regularly invited as there was no way for them to enter the competition with the Olympics no longer serving as a qualifying tournament. The Summer Olympics returned as an outright qualifying tournament in 1982 when the top three Olympic teams were given berths, but these were again removed in 1986, when two invited teams participated.