1. The Washington Monument was completed on September 25, 1884. The monument is a 555-foot obelisk located on the National Mall and honors George Washington, the first president of the United States.

2. On September 25, 1978, a PSA Flight 182 collided with a small private aircraft over San Diego, California. The crash resulted in 144 fatalities, making it the deadliest aviation disaster in the history of California.

3. September 25, 1986 marked the opening of the International Monetary Fund and World Bank annual meetings in Washington, D.C. The meetings brought together world leaders, economists, and finance sector officials from over 100 countries to discuss global economic issues.

4. The Washington Nationals baseball team clinched a playoff spot on September 25, 2012, with a win over the Los Angeles Dodgers. The Nationals went on to win the National League East that year and advanced to the postseason.

5. September 25, 2019 saw the unveiling of the Dwight D. Eisenhower Memorial in Washington, D.C. The memorial honors the legacy of President Eisenhower, who led the United States during World War II and played a crucial role in shaping the country's postwar policies. The memorial features a 450-foot-long stainless steel tapestry depicting scenes from Eisenhower's life and presidency.