1. Louisiana's First Revenue Law Was Enacted on April 15, 1805
On this day, Louisiana Governor William C.C. Claiborne signed into law one of the first revenue laws in the state. This law imposed a tax on all goods and merchandise imported into the Louisiana territory.

2. The First Louisiana-Made Steamship Took Its Maiden Voyage on April 15, 1813
The steamship was called the New Orleans and was built in the city's famous shipyards. The New Orleans made its maiden voyage from New Orleans to Natchez, Mississippi, and revolutionized transportation in the lower Mississippi River Valley.

3. The Confederate Flag Flew Over the U.S. Mint in New Orleans on April 15, 1861
After Louisiana seceded from the United States, Confederate forces took control of the U.S. Mint in New Orleans. On April 15, 1861, the Confederate flag was raised above the building for the first time.

4. The First Jazz Fest Was Held on April 15, 1970
The New Orleans Jazz & Heritage Festival, also known as Jazz Fest, was first held on April 15, 1970. It has since become one of the most popular and celebrated music festivals in the United States.

5. A Tornado Struck New Orleans East on April 15, 1988
A powerful tornado tore through New Orleans East on April 15, 1988, causing extensive damage to homes and businesses. Several people were injured and one person died as a result of the tornado.