1) On March 13, 1845, the State of Louisiana adopted its current state constitution. This constitution established a number of important reforms, including the creation of a system of public education, the right to a jury trial, and the establishment of an elected governor and legislative branch.

2) March 13, 1862 marked the beginning of the Battle of New Bern, a pivotal battle in the American Civil War. Union forces, under the command of General Ambrose Burnside, attacked Confederate troops defending the city of New Bern, North Carolina. The Union ultimately emerged victorious in the battle, which helped pave the way for the eventual Union victory in the war.

3) On March 13, 1928, the Huey P. Long Bridge opened to traffic. Spanning the Mississippi River between New Orleans and Jefferson Parish, the bridge was at the time the longest railroad bridge in the world. It is now a key landmark and transportation hub for the region.

4) March 13, 1957 marked the Louisiana premiere of the classic film "The Bridge on the River Kwai." The film, which won seven Academy Awards, tells the story of Allied prisoners of war forced to build a bridge for their Japanese captors during World War II.

5) On March 13, 1976, the final episode of the popular radio program "The Louisiana Hayride" was broadcast from the Shreveport Municipal Auditorium. The show, which originally aired from 1948 to 1960, helped launch the careers of numerous country music legends, including Elvis Presley, Johnny Cash, and Hank Williams.