Several railroads were chartered by the Republic of Texas, but the first line built was the Buffalo Bayou, Brazos and Colorado, which began construction near the Port of Houston Turning Basin in 1851. The BBB&C would become the oldest segment of the country's first transcontinental railroad under sole ownership: the Southern Pacific's Sunset Route, connecting New Orleans and Los Angeles and completed in 1883. By the time oil was discovered near Beaumont...