Louisiana is known for its marshy flatlands divided into 5 regions. It has a population of over 4 million people and was explored in 1684 before becoming a state in 1812. Some of its major industries include petroleum, offshore oil mining, agriculture, and fishing. Visitors to Louisiana can explore the French Quarter in New Orleans, see remnants of Hurricane Katrina, and experience the state's food and Mardi Gras culture over a 3-day trip.