Claim: The 19th G7 summit included Mexico.
Evidence: The Group of Seven -LRB- G7 -RRB- was an unofficial forum which brought together the heads of the richest industrialized countries : France , Germany , Italy , Japan , the United Kingdom , the United States , Canada -LRB- since 1976 -RRB- and the President of the European Commission -LRB- starting officially in 1981 -RRB-.