Which female tennis player has won the most Grand Slam singles titles?

Who was the first male player to win all four Grand Slam titles in one year?

What is the term for winning all four Grand Slam tournaments in a single calendar year?

Legendary tennis player Billie Jean King details the remarkable history of women's tennis in this stunning edition of Trailblazers: The Unmatched Story of Women's Tennis.In celebration of the Women's Tennis Association's 50th anniversary, this updated and expanded edition--based on the 1988 original We Have Come a Long Way: The Story of Women's Tennis--includes more than 250 photographs and 33 years' worth of stories about inspiring women and their achievements. The book arrives 53 years after King and eight other women players broke with the male tennis establishment and launched their own professional tour.With this gorgeous, photographically forward, and deeply moving ode to women's tennis, King and coauathor Cynthia Star will continue the remarkable story in which King has played such an integral role, shedding new light on barriers that were overcome and milestones that were achieved. Women's tennis today has never been more popular across the globe and, as this book demonstrates, has never been more diverse and inclusive.

Who was the first American woman to win three gold medals in track and field at the same Olympic game?

Which country has won the most Olympic gold medals in swimming?