1. Historic Washington National Cathedral was dedicated on May 16, 1930. The cathedral, which features stunning Gothic architecture and towering stained glass windows, took 83 years to complete and is the sixth largest cathedral in the world.

2. On May 16, 1868, the United States Senate failed to convict President Andrew Johnson in his impeachment trial by one vote. This allowed the embattled president to remain in office for the remainder of his term.

3. The White House Correspondents' Association Dinner, an annual gathering of journalists and political figures, often referred to as "nerd prom," is typically held on the third or fourth Saturday in April. However, in 2009, the dinner was held on May 16, making it the latest date in history.

4. On May 16, 1943, a six month-long race riot erupted in Washington, D.C. after a white bus driver threatened to shoot a black passenger who refused to give up his seat. The riot resulted in the deaths of two people and the destruction of several businesses and homes.

5. The Supreme Court of the United States announced its landmark decision in the case of Brown v. Board of Education on May 16, 1954. The court ruled that segregation in public schools was unconstitutional, paving the way for integration and the Civil Rights Movement.