http://en.wikipedia.org/wiki/Y.A._Tittle

In 1961, the 49ers traded Tittle to the New York Giants for guard Lou Cordileone. Tittle went on to lead the Giants to three straight Eastern Division titles, part of a team that featured such great players as Del Shofner, Aaron Thomas, Joe Walton, Frank Gifford, Alex Webster, Dick Lynch, Jimmy Patton, Roosevelt Brown, Andy Robustelli, Sam Huff, Erich Barnes and Joe Morrison. Tittle threw seven touchdown passes on October 28, 1962, in a game against the Washington Redskins that the Giants won 49-34. In 1963, he set what was then an NFL record by throwing 36 touchdown passes.

Y.A. Tittle was the first and one of only six quarterbacks in NFL history to have achieved consecutive 30-touchdown passing seasons. The others are Steve Bartkowski, Brett Favre, Dan Fouts, Dan Marino, Peyton Manning, and Jeff Garcia. Tittle's 36 touchdown passes in the 1963 season would remain an NFL record until Marino threw 48 touchdown passes in 1984.