1. Alabama became a state: October 31, 1819, marks the day that Alabama officially became the 22nd state in the United States.

2. Martin Luther King Jr. marched for voting rights: On October 31, 1964, Martin Luther King Jr. led a march from Selma to the voting registration office in Montgomery to fight for voting rights for African Americans.

3. Alabama Peace Officers’ Memorial Day: In 2000, October 31 was officially designated as Alabama Peace Officers’ Memorial Day in honor of law enforcement officers who lost their lives while serving the community.

4. Record-breaking cold temperatures: On October 31, 1943, Alabama experienced record-breaking low temperatures with some areas dropping to as low as 12 degrees Fahrenheit.

5. The deadliest tornado outbreak in Alabama history: On April 27, 2011, a massive tornado outbreak struck Alabama, killing 254 people and causing over $4 billion in damage. However, the outbreak began on October 31, 2010, when thunderstorms caused 12 tornadoes in central Alabama.