On May 8, 1966 — Orioles’ outfielder Frank Robinson becomes the first (and only) player to hit a home run completely out of Baltimore’s Memorial Stadium. The 451-foot wind-assisted blast, which clears the fifty rows of the left-field seats near the foul pole, before rolling to a stop 540 feet from home plate, comes off a fastball thrown by Indians’ starter Luis Tiant, who hadn’t given up an earned run through his first 27 innings on the season. The Orioles will win the game 8-3.