1. In 1939, the Washington D.C. Municipal Airport opened on June 12. It was later renamed as Ronald Reagan Washington National Airport in 1998.

2. On June 12, 1963, civil rights leader Medgar Evers was shot and killed by a white supremacist outside his Mississippi home. His death sparked widespread outrage and protests against racism and discrimination.

3. The Washington Post published its first issue on June 12, 1877, making it one of the oldest continuously published newspapers in the United States.

4. The National Museum of African American History and Culture opened on June 12, 2016, in Washington D.C. The museum is a part of the Smithsonian Institution and focuses on black history, culture, and contributions to American society.

5. On June 12, 1987, President Ronald Reagan gave a famous speech at the Brandenburg Gate in West Berlin, where he famously declared "Mr. Gorbachev, tear down this wall!" His call for the dismantling of the Berlin Wall signaled the end of the Cold War and helped pave the way for Germany's reunification.