Statehood The 18th state Apr. 30, 1812 Captial Baton Rouge State Motto Union, justice, and confidence Origin of State Name Louisiane was the name given by the 17th century French explorer René-Robert Cavelier. The Spanish version of the name was Luisiana and the present name evolved from a combination of these. State Nickname The Pelican State The nickname is after the native coastal bird, the pelican. Interesting Facts Parts of the Mississippi River delta plain near New Orleans lie below sea level. More than one-half of the species of birds in North America are resident in Louisiana or spend a portion of their migration there. On January 8, 1815, a large British force stormed New Orleans, but was thrown back by forces commanded by Major General Andrew Jackson.