1. On March 10, 1765, the Louisiana Purchase was signed in Paris, France. This agreement transferred ownership of the Louisiana Territory from France to Spain. It paved the way for the vast American expansion in the western part of the continent.

2. In 1864, during the Civil War, Union troops led by General Nathaniel Banks captured Alexandria, Louisiana, after a short skirmish. This victory secured the Union's control over central Louisiana and allowed Banks to proceed with his military campaign in the region.

3. On March 10, 1890, the first Mardi Gras parade was held in New Orleans. This annual celebration, which began in the late 18th century as a French Catholic tradition, has become a beloved event, drawing millions of visitors to the city every year.

4. In 1908, jazz pioneer Buddy Bolden recorded his first and only phonograph record, which is now lost to history. Bolden was one of the most influential musicians of his time, and his innovative music helped shape the sound of early jazz in New Orleans.

5. On March 10, 1966, the Louisiana Superdome was officially dedicated in New Orleans. This massive stadium, which has since been replaced, was the largest enclosed stadium in the world at the time of its completion. It hosted numerous major sporting events and concerts over the years, including several Super Bowls and the iconic reunion concert of the Rolling Stones in 1981.