Dick Williams of the Baltimore Orioles hits a 9th-inning, game-tying solo home run off Paul LaPalme of the Chicago White Sox seconds before 10:20 p.m., the curfew set so Chicago can catch a train out of Baltimore. If Williams had done anything else, the White Sox would have won. The game is later replayed from the beginning and Baltimore wins.

On May 18, 1957 — Dick Williams of the Baltimore Orioles hits a 9th-inning, game-tying solo home run off Paul LaPalme of the Chicago White Sox seconds before 10:20 p.m., the curfew set so Chicago can catch a train out of Baltimore. If Williams had done anything else, the White Sox would have won. The game is later replayed from the beginning and Baltimore wins.

Source:
Baseball Reference May 18