1. In 1987, the "Schaefer" exhibit opened at the National Museum of American History. Named after former Maryland Governor William Donald Schaefer, the exhibit showcased American material culture from the 20th century.

2. On February 23, 1915, the District of Columbia National Guard was activated in response to a labor dispute. The Guardsmen were ordered to protect the government buildings in the city and maintain order.

3. In 1960, civil rights activist Reverend Martin Luther King Jr. spoke at Howard University in Washington, D.C. His speech, titled "The Negro and The American Dream," addressed issues of racial injustice and segregation in American society.

4. On this day in 2005, the Smithsonian's National Museum of the American Indian opened its doors to the public. The museum features exhibits on the heritage, culture, and history of Native American peoples.

5. In 1934, Senator Huey P. Long of Louisiana gave a speech in Washington, D.C., advocating for his "Share Our Wealth" program. The program called for the redistribution of wealth in America and was seen as a challenge to President Franklin Roosevelt's New Deal policies.