April 29

From The Met Wiki

1962: In the first game of the Mets' first doubleheader ever, Al Jackson pitches the first shutout in franchise history. The Mets defeat the Phillies, 8-0, at the Polo Grounds.

1966: The Mets score four runs in the 11th inning and defeat the Pirates, 5-2, at Pittsburgh.

1983: The Mets hit three homers in a 6-5 win over the Braves at Shea Stadium.

1995: Joe Orsulak's run-scoring single in the 11th inning gives the Mets a 5-4 win over the Cardinals at Shea Stadium.

1996: The Mets defeat the Expos, 3-2, at Shea Stadium. Reliever John Franco becomes the first lefthander ever to record 300 career saves.