Omaha had an early history as a "wide-open town" where prostitution, gambling, drugs and alcohol were accepted. There were no official law-enforcement officers until after the city was incorporated. On February 12, 1857, the city of Omaha was incorporated and in March J.A. Miller was appointed the city marshall. In March 1866, the city council enlarged the police force to four men. Prostitution was a brisk trade in early Omaha, and sex workers in the Burnt District numbered 1,500 by the 1870s.