When the world golf rankings were created in April 1986, which golfer became the first world number one?

Bernhard Langer (born 27 August 1957) is a German professional golfer. He is a two-time Masters champion and was one of the world's leading golfers throughout the 1980s and 1990s. In 1986, he became the sport's first official number one ranked player. After turning 50, he established himself as one of the most successful players on PGA Tour Champions and has won seven senior major championships: the 2010 and 2014 Senior Open Championship, the 2010 U.S. Senior Open, the 2016 Regions Tradition and the 2014, 2015 and 2016 Constellation Senior Players Championship.