Dallas is the third-largest city in the state of Texas and the ninth-largest city in the United States. It is the main cultural and economic center of the DallasFort WorthArlington metropolitan area (colloquially referred to as Dallas/Fort Worth Metroplex), which is the fifth-largest metropolitan area in the U.S. with a population of 5.7 million in 12 counties [4].
The city was founded in 1841 and formally incorporated as a city on 2 February 1856. Dallas is known globally as a center for telecommunications, computer technology, banking, and transportation. It is the core of the largest inland metropolitan area in the nation and lacks any direct link to the seaDallas's prominence despite this comes from its historical importance as a center for the oil and cotton industries, its position along numerous railroad lines, and its powerful industrial and financial tycoons.