The 1983 NBA World Championship Series, also known as Showdown '83, was the championship round of the National Basketball Association (NBA)'s 1982–83 season, and the culmination of the season's playoffs. It was the last NBA Championship Series completed before June 1. The Eastern Conference champion Philadelphia 76ers swept the Western Conference champion Los Angeles Lakers to win their third NBA championship and first since 1967. After their previous four final meetings, the 76ers returned the favor. Won the 1983 NBA Finals on May 31, 1983. Wiki link