1. Louisiana Purchase Treaty Signed: On September 30, 1803, the Louisiana Purchase Treaty was signed in Paris, France, which secured the territory of Louisiana for the United States at a cost of $15 million.

2. Last Public Execution: September 30, 1947, marked the last public execution in Louisiana. Willie Francis, a seventeen-year-old black teenager, was executed by electric chair in St. Martinville, Louisiana, for the murder of a white pharmacist.

3. USS Louisiana Commissioned: On September 30, 1995, the USS Louisiana (SSBN-743), a United States Navy ballistic missile submarine, was commissioned in Groton, Connecticut. It was named after the state of Louisiana.

4. First African American Woman Elected to Congress: On September 30, 1991, Barbara C. Jordan became the first African American woman elected to Congress from a southern state when she won a special election in Texas’ 18th congressional district.

5. Hurricane Juan Strikes: On September 30, 1985, Hurricane Juan made landfall near Morgan City, Louisiana, as a Category 1 hurricane. It caused extensive flooding and damage throughout south-central Louisiana.