1. In 1803, Louisiana officially became a United States territory on December 30th. This was a result of the Louisiana Purchase, which had been signed by Thomas Jefferson and Napoleon Bonaparte earlier that year.

2. On December 30, 1817, the Louisiana state capital was moved from New Orleans to Baton Rouge. This decision was made due to concerns over flooding and the desire for a more central location.

3. In 1845, The New Orleans Daily Delta, one of the city's most influential newspapers, was first published on December 30th. The paper would continue to operate for over 100 years, until it was forced to shut down due to financial issues.

4. December 30, 1862, marked the beginning of the Union siege of Port Hudson, a Confederate stronghold on the Mississippi River. The siege would last for over six weeks, and was a major turning point in the Civil War.

5. In 1922, the first radio broadcast in Louisiana history took place on December 30th. The broadcast was made by station WWL in New Orleans and featured live music and news updates. WWL would go on to become one of the most popular radio stations in the state.