Helene de Pourtalès to Claressa Shields

Women's boxing debuted at the London Olympics, and 12 medals were awarded. Claressa Shields of the United States won the middleweight division. AP Photo/Rick Osentoski

For the first time in history, women -- 22 to be exact -- competed in the 1900 Summer Olympics in Paris, participating in tennis, sailing, croquet, equestrian and golf. Helene de Pourtalès became the first woman to medal at the Olympics when she took gold and silver as a member of Switzerland’s men’s sailing team. She was the only woman on the team that competed in the 1-2 ton class. At the 2012 London Olympics, 4,676 women competed in 26 sports.

Read more WFYIs.