Women’s boxing in America has come a fair way since Nell Saunders and Rose Harland fought for pride and a silver butter dish in 1876, but it has had to bob and weave against men who resisted letting them become part of the sport. The American Civil Liberties Union had to sue USA Boxing, the amateur governing body, in 1993 to allow in women like Mayer. The Amateur International Boxing Association only lifted its ban on women in 1994. And the London Olympics in 2012 was the first time women had ever boxed at the games.