Claim: Four teams competed in the Taça das Nações or Little World Cup in celebration of the founding of the Brazilian Football Confederation, Brazil's governing body of football.
Evidence: The Taça das Nações (Portuguese for "Nations' Cup") or "Little World Cup" was a football tournament played in Brazil in 1964 to celebrate the 50th anniversary of the founding of the Brazilian Football Confederation. 4 (from 2 confederations) 
Argentina Brazil Portugal England