From the 1860s until 1939, one criminal organization operated the largest human trafficking network the world had ever seen. They registered as a "Mutual Aid Society" in Buenos Aires, but their business was the abduction and sale of women—primarily from Eastern Europe—into forced prostitution across South America, North America, Asia, and Africa. At its peak, this organization controlled: 2,000 brothels in Argentina alone An estimated 4,000 women trapped in sexual slavery An annual turnover of $50 million (in early 1900s value)