1. First African American Woman Elected to Congress: On August 24, 1965, Shirley Chisholm became the first African American woman elected to the United States Congress. She represented New York's 12th Congressional District and served seven terms in the House of Representatives.

2. Lincoln Memorial Dedication: The dedication ceremony for the Lincoln Memorial took place on August 24, 1922. The iconic statue of Abraham Lincoln was commissioned by Congress in 1911 and took nearly a decade to complete. The dedication was attended by over 50,000 people, including President Warren G. Harding and former President William Howard Taft.

3. Hurricane Andrew Hits DC: On August 24, 1992, Hurricane Andrew made landfall in Florida, causing significant damage across the southeastern United States. The storm also caused flooding and power outages in the Washington, D.C. metropolitan area, leaving thousands of residents without power for several days.

4. Martin Luther King Jr.'s "I Have a Dream" Speech: On August 24, 1968, a few days after the assassination of civil rights leader Martin Luther King Jr., his widow, Coretta Scott King, and other civil rights leaders led a memorial march on Washington, D.C. During the march, participants chanted and sang spirituals and other hymns, echoing King's famous "I Have a Dream" speech from five years earlier.

5. Smithsonian National Museum of African American History and Culture Opens: The Smithsonian National Museum of African American History and Culture officially opened its doors to the public on August 24, 2016. The museum, which is located on the National Mall in Washington, D.C., features exhibits on African American history, culture, and contributions to American society.