1. In 1804, the Louisiana Purchase Treaty, which granted the United States over 800,000 square miles of land from France, was ratified by the United States Senate. This significant event helped to solidify Louisiana's status as an American state.

2. On November 9, 1938, a devastating hurricane struck southeastern Louisiana, causing widespread destruction and claiming many lives. Known as the New England Hurricane, or the Long Island Express, it was one of the deadliest and costliest storms in U.S. history.

3. In 1951, Louisiana Governor Earl K. Long, known for his colorful personality and political antics, was removed from office during a heated dispute with the state legislature, which accused him of mental incompetence. Long briefly attempted to fight the decision, but ultimately resigned from office.

4. On November 9, 1953, a natural gas explosion destroyed a school in New London, Texas, killing over 300 people, mostly children. Although not directly related to Louisiana, the tragedy had a profound impact on the state, as many communities around the region worked to improve safety regulations for gas and oil production.

5. November 9, 2019 marked the 10th anniversary of the opening of the National World War II Museum in New Orleans. The museum, which honors the sacrifices and achievements of American soldiers and civilians during the war, has been recognized as one of the best museums of its kind in the world. In the past decade, it has welcomed millions of visitors to Louisiana and helped to cement the state's place in the national narrative of World War II history.