The Praetorian Building of 15 stories, built in 1909, was the first skyscraper west of the Mississippi and the tallest building in Texas for some time. A racetrack for Thoroughbreds was built and their owners established the Dallas Jockey Club.Trotters raced at a track in Fort Worth, where a similar Drivers Club was based. The city's prominence arose from its historical importance as a center for the oil and cotton industries, and its position along numerous railroad lines.Overall, the Dallas–Fort Worth metro area had the second largest population increase among metro areas in the U.Downtown Dallas has a variety of named districts, including the West End Historic District, the Arts District, the Main Street District, Farmers Market District, the City Center business district, the Convention Center District, and the Reunion District."Hot spots" in this area include Uptown, Victory Park, Harwood, Oak Lawn, Dallas Design District, Trinity Groves, Turtle Creek, Cityplace, Knox/Henderson, Greenville and West Village.
Central Dallas is anchored by Downtown, the center of the city, along with Oak Lawn and Uptown, areas characterized by dense retail, restaurants, and nightlife. It is the most populous city in the Dallas–Fort Worth metroplex, which is the fourth most populous metropolitan area in the United States. According to the 2010 United States Census, the city had a population of 1,197,816. The bulk of the city is in Dallas County, of which it is the county seat; however, sections of the city are located in Collin, Denton, Kaufman, and Rockwall counties.The rapid expansion of population increased competition for jobs and housing.
On March 3, 1910, Allen Brooks, a black man, was abducted from court and hung from Elk's Arch.
With the construction of railroads, Dallas became a business and trading center and was booming by the end of the 19th century.