1. In 1799, the first American flag to have more than 15 stripes was flown for the first time at Fort St. Jean Baptiste in Natchitoches, Louisiana. The flag had 20 stripes and was designed to honor the admission of Vermont and Kentucky into the Union.

2. On July 25, 1805, two of the most famous explorers in American history, Meriwether Lewis and William Clark, arrived in St. Louis, completing their journey of over 8,000 miles from the Mississippi River to the Pacific Ocean and back.

3. The Civil War Battle of Baton Rouge took place on July 25, 1862, when Confederate troops attempted to retake control of the city from Union forces. The battle resulted in a Union victory and secured their control of Baton Rouge for the remainder of the war.

4. On July 25, 1908, jazz legend Jelly Roll Morton recorded his first songs in New Orleans, including "King Porter Stomp" and "The Rose Leaf Rag." Morton is widely considered one of the pioneers of jazz music and helped popularize the genre in its early days.

5. One of the deadliest natural disasters in American history occurred on July 25, 1943, when a series of explosions at the Camp Minden ammunition depot in Webster Parish, Louisiana, killed 22 people and injured over 400 more. The explosions were caused by mishandling of munitions and resulted in widespread damage to the surrounding area.