At the time of the Secession war, Texas, a slave, was found in the southeastern camp. Serving as a rear base, it suffered less than the other southern states. The decades that followed were marked by strong growth. In 1880, the beaten West Indians were displaced. The railroad progressively quadrille the state and livestock begins to become a source of wealth in a Texan economy dominated by cotton culture. The population quintupled between 1860 and 1900. Change accelerated after 1900. Texas became one of the most industrialized states in the Union, thanks to oil, discovered for the first time by Spindletop in 1901. World War II caused the emergency aeronautics and electronics sectors. Alongside industrialization, important metropolises appeared.
In his book, Aryabhata, he suggested that the Earth was sphere, containing a circumference of 24,835 miles (39,967 km). Aryabhata also mentioned that reflected sunlight is the cause behind the shining of the Moon.
