How is this for historical moments at historical venues? Don Majeski, the promoter, matchmaker and historian, gave me this information.

June 20, 1960, Mercante referees Floyd Patterson's knockout of Ingemar Johansson. The final fight at the Polo Grounds.

December 15, 1967, Mercante referees Luis Rodriguez's win over Bennie Briscoe. The final main event at the old Madison Square Garden.

March 4, 1968, Mercante referees Joe Frazier's knockout of Buster Mathis. The first main event at the current Madison Square Garden.

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September 28, 1976, Mercante referees Muhammad Ali's decision over Ken Norton. The final fight at Yankee Stadium.