Photos: When Billie Jean King won the 'Battle of the Sexes

Fifty years ago, Billie Jean King defeated Bobby Riggs in a historic “Battle of the Sexes” tennis match. It was the most watched tennis match of all time, and it became an important moment in the women’s rights movement.

September 20, 1973: Billie Jean King Defeated Bobby Riggs in the “Battle of the Sexes” Tennis Match - Lifetime

Billie Jean King triumphs in “Battle of the Sexes, September 20, 1973

Photos: When Billie Jean King won the 'Battle of the Sexes

Sept-20-1973: Billie Jean King Wins The Battle of the Sexes – Trophy Lives

Billie Jean King's 'Battle of the Sexes' Racket Sells for $125K, Likely the Most Expensive Piece of Women's Sport Memorabilia in History - Last Word On Tennis

Battle of the Sexes 45 Years on: Billie Jean King Continues the Battle Against Gender Inequality

On 50th anniversary of Billie Jean King's 'Battle of the Sexes' win, a push to honor her in Congress

Photos: The Battle of the Sexes, Billie Jean King vs. Bobby Riggs

Battle of the Sexes: four decades after Billie Jean King's triumph, women still fight for equal billing in sports