1. Louisiana Ratifies the US Constitution - On July 19, 1788, Louisiana became the sixth state to ratify the United States Constitution, which had been proposed by the Constitutional Convention on September 17, 1787.

2. New Orleans Slave Revolt - On July 19, 1811, a group of enslaved Africans, known as the German Coast Uprising, rose up against their captors in an attempt to secure their freedom. The revolt was eventually defeated by a group of militiamen and U.S. troops.

3. Louisiana Founded as a State - On July 19, 1845, Louisiana became the 18th state to join the Union, after being admitted by Congress on April 30, 1812.

4. Huey P. Long Assassinated - On July 19, 1935, Louisiana Governor Huey P. Long was assassinated in the Louisiana State Capitol Building in Baton Rouge. Long had been a controversial political figure, known for his populist policies and controversial methods.

5. Hurricane Hits Louisiana - On July 19, 2005, Hurricane Emily made landfall in Louisiana, causing significant damage and flooding in the state. The storm was part of an active hurricane season, which also included Hurricanes Katrina and Rita later that year.