1. On September 9, 1915, Huey P. Long was sworn in as Louisiana's youngest governor at the age of 32. Long would go on to hold multiple political offices in the state and become known for his populist policies and controversial tactics.

2. In 2005, Hurricane Katrina hit Louisiana on September 9, causing widespread devastation and loss of life. The storm is regarded as one of the worst natural disasters in US history and had long-lasting effects on the state and its inhabitants.

3. September 9, 1974, marked the opening of the Louisiana World Exposition in New Orleans. The fair ran for six months and attracted millions of visitors from across the country, showcasing the state's culture, history, and industry.

4. On September 9, 1963, Governor Jimmie Davis declared a state of emergency in Louisiana after racial tensions and violence erupted in the city of New Orleans. The move allowed the National Guard to intervene and restore order, but also highlighted the ongoing struggles for civil rights and social justice in the state.

5. Finally, on September 9, 1928, Louisiana State University played its first football game at Tiger Stadium in Baton Rouge. The stadium remains a beloved landmark and symbol of college football prowess in the state, with LSU continuing to attract top talent and achieve national prominence on the gridiron.