Eras of Texas By fraustomiguel Period: Sep 24, 1500 to Sep 24, 1528 prehistory Period: Sep 24, 1528 to Sep 24, 1690 age of contact Period: Sep 24, 1690 to Sep 24, 1821 spanish colonial Period: Sep 24, 1821 to Sep 24, 1836 mexican national Period: Sep 24, 1835 to Sep 24, 1845 revolution and republic Period: Sep 24, 1845 to Sep 24, 1861 eariy statehood Period: Sep 24, 1861 to Sep 24, 1874 civil war and reconstruction Period: Sep 24, 1865 to Sep 24, 1900 cotton cattle and railroads Period: Sep 24, 1894 to Sep 24, 1934 age of oil Period: Sep 24, 1929 to Sep 24, 1945 texas in the great depression and world war ll Period: Sep 24, 1945 to Sep 24, 1980 civil rights and conservatism