1. In 1815, the Battle of New Orleans was fought between American forces led by General Andrew Jackson and the British army. Although the battle took place after the signing of the Treaty of Ghent, which officially ended the War of 1812, it was a significant victory for the Americans and propelled Jackson to national prominence.

2. On January 23, 1855, the first Mardi Gras parade was held in New Orleans by the Krewe of Comus. The parade featured elaborate floats, marching bands, and costumed revelers, and it set the standard for future Mardi Gras celebrations.

3. Louisiana State University, located in Baton Rouge, was established on January 23, 1860. The university has since become a cultural and educational center for the state and the region, with a wide range of academic programs and athletic teams.

4. On January 23, 1973, the U.S. Supreme Court issued its landmark decision in Roe v. Wade, legalizing abortion nationwide. The decision was controversial and continues to be the subject of passionate debate in Louisiana and across the country.

5. Louisiana Governor Edwin Edwards was born on January 23, 1927. Edwards served four terms as governor of the state, from 1972 to 1980, from 1984 to 1988, and from 1992 to 1996. He was known for his colorful personality and his ability to win over voters, but also faced numerous corruption charges over the course of his career.