Billie Jean King is an iconic figure in the world of tennis and gender equality. Born on November 22, 1943, in Long Beach, California, she won 39 Grand Slam titles, including 12 singles titles, throughout her illustrious career. Beyond her athletic achievements, King is renowned for her advocacy for social justice and equality, famously defeating Bobby Riggs in the "Battle of the Sexes" in 1973, an event that symbolized the fight for gender equality in sports. She founded the Women's Tennis Association and the Women's Sports Foundation, and continues to inspire as a trailblazer for women in sports and beyond.