When did people start moving to Dallas Fort Worth?

People started moving to the Dallas-Fort Worth area in the mid-1800s, when the first European settlers arrived. The area was originally inhabited by Native American tribes, but the settlers began to move in after the United States acquired the land from Mexico in the Mexican-American War. The settlers were attracted to the area by the fertile soil and the mild climate, and they soon began to establish farms and ranches. The population of the area grew rapidly, and by the end of the 1800s, it was one of the most populous areas in Texas.