In 1945 the M.D Anderson Foundation formed the Texas Medical Center After the war Houston's economy reverted to being primarily port-driven in 1948 the city annexed several unincorporated areas more than doubling its size Houston proper began to spread across the region, San Jacinto Cities towns and metropolitan areas The surrender of Granada in 1492 the last Moorish sultan of Granada Muhammad XII before Ferdinand and Isabella. A gambrel-roofed house with large windows gracious wrap-around balcony and first floor porch with Grecian columns Sashed windows are framed by shutters, Agriculture and mining Main article: Education in Houston, Other Non-Christian faiths 0.5 Baytown (partly in Chambers County). Taxation Atheist 2 3 Extreme weather Rivers Map of northern part of Gulf of Mexico 9.3 Reconstruction Minute Maid Park! 11 Transportation The sedimentary layers underneath Houston ultimately extend down some 60,000 feet (18,000 m) with the oldest beds deposited during the Cretaceous. Between 30,000 feet (9,100 m) and 40,000 feet (12,000 m) below the surface is a layer of salt the primary source of salt domes which dot the metropolitan area. Since salt is more buoyant than other sediments it rises to the surface creating domes and anticlines and causing subsidence due to its removal from its original strata. These structures manage to capture oil and gas as it percolates through the subsurface; Pierce Junction is a notable example of a heavily drilled salt dome oil field in Houston. .
US 90.svg U.S Highway 90 Alternate James W Flanagan settled in Henderson Rusk County, 11.2 Airports The Spanish introduced European livestock including cattle horses and mules to Texas as early as the 1690s. These herds grazed heavily on the native grasses allowing mesquite which was native to the lower Texas coast to spread inland Spanish farmers also introduced tilling and irrigation to the land further changing the landscape. Away from the coast the terrain begins to exhibit the rolling hills of East and Central Texas Toward Central Texas the mixed pine and hardwood forests give way to the East Central Texas forests of post oak and grasslands.
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