1. In 1861, Louisiana seceded from the United States and joined the Confederacy, marking the start of the American Civil War in the state.

2. In 1918, the infamous Spanish Flu epidemic hit Louisiana, causing widespread illness and death for several months.

3. In 1949, the Louisiana Hayride, a popular country and western music show, began broadcasting from Shreveport. The show launched the careers of many famous musicians, including Elvis Presley.

4. In 1992, Louisiana celebrated the 500th anniversary of Christopher Columbus' arrival in the Americas with a year-long series of events and exhibitions.

5. In 2010, Louisiana marked the fifth anniversary of Hurricane Katrina, a devastating storm that caused widespread destruction and loss of life in the state. The anniversary was marked by ceremonies, memorials, and reflections on the ongoing recovery efforts.