1. Louisiana became the 18th state to endorse the Equal Rights Amendment on May 11, 1972. The amendment proposed that equality of rights under the law not be denied or abridged on account of sex.

2. The first recorded commercial oil well in Louisiana - the Furtado No. 1 - was completed on May 11, 1901. It was located near Jennings and produced an average of 7,000 barrels of oil per day.

3. On May 11, 1918, the world-renowned jazz cornetist and bandleader Joe "King" Oliver recorded his first album in New Orleans. The recording included the tracks "Dipper Mouth Blues" and "Where did you stay last night?"

4. Louisiana's first governor, William C.C. Claiborne, was born on May 11, 1775. He served as governor from 1812 until his death in 1817 and was instrumental in the state's admission to the Union.

5. The DeQuincy Railroad Museum, located in DeQuincy, LA, opened on May 11, 1986. The museum houses various exhibits related to the history of railroads and their impact on the region. It is also home to several restored trains and railcars.