The lyrics of "Philadelphia Freedom" are not explicitly about the match or King, but stem from a love of King and her cause. Prior to their match, Riggs claimed that even as a 55-year-old man, he could still beat a woman (King was 29 at the time) in a tennis match because it was a man's game. The match was held on 20 September 1973 at the Astrodome in Houston and was telecast worldwide. Though usually cheering from the sidelines at every match, John lost his voice cheering King on from a Los Angeles hotel. The year before the "Battle of the Sexes" match, Congress adopted the Equal Rights Amendment and 1973 saw the decision of "Roe v. Wade" give women the right to choose to have an abortion. King made other steps in feminism in 1973 when she founded the Women's Tennis Association and "convinced the U.S. Open to award female champions the same prize money as men." This set the scene for King's match and victory against Riggs.