The state was named for the Colorado River, which Spanish travelers named the Río Colorado for the ruddy (Spanish: colorado) silt the river carried from the mountains. The Territory of Colorado was organized on February 28, 1861, and on August 1, 1876, U.S. President Ulysses S. Grant signed Proclamation 230 admitting Colorado to the Union as the 38th state. Colorado is nicknamed the "Centennial State" because it became a state a century after the signing of the United States Declaration of Independence.
Alabama is nicknamed the Yellowhammer State, after the state bird. Alabama is also known as the "Heart of Dixie" and the Cotton State. The state tree is the longleaf pine, and the state flower is the camellia. Alabama's capital is Montgomery. The largest city by population is Birmingham, which has long been the most industrialized city; the largest city by land area is Huntsville. The oldest city is Mobile, founded by French colonists in 1702 as the capital of French Louisiana.