12/12/1968 Arthur Ashe is the first black to be ranked #1 in tennis
Best of Five Arthur Ashe vs Tom Okker 1968 US Open
Arthur Ashe Talks to Bud Collins On Eve Of Historic 1968 US Open Tennis Final
BBC - Arthur Ashe: More Than a Champion (2015)
How winning the U.S. Open gave Arthur Ashe the spotlight to speak out against injustice
Ashe was the first black player selected to the United States Davis Cup team and the only black man ever to win the singles title at Wimbledon, the US Open, and the Australian Open. He was ranked World No. 1 by Harry Hopman in 1968 and by Lance Tingay of The Daily Telegraph and World Tennis Magazine. In the ATP computer rankings, he peaked at No. 2.