April 30, 1971 The Milwaukee Bucks, led by young Kareem Abdul-Jabbar and veteran Oscar Robertson, beat the Baltimore Bullets 118-106 to complete a four-game sweep of the NBA Finals, capturing the franchise’s only NBA Championship.
April 30, 1975 Larry O’Brien was named the third commissioner of the NBA, succeeding J. Walter Kennedy.
April 30, 1988 Sleepy Floyd scored 42 points and Hakeem Olajuwon added 41 as Houston downed Dallas 119-108 in Game 2 of their Western Conference First Round series, marking only the second time in NBA Playoff history that teammates surpassed 40 points in a game.
April 30, 2002 Seattle SuperSonics guard Gary Payton became only the second player in league history to be named to the NBA All-Defensive First Team nine times. Payton joined the Washington Wizards' Michael Jordan as the only nine-time members of the All-Defensive First Team. Jordan was named to the squad nine times as a member of the Chicago Bulls.