1. In 1812, British forces entered the city and burned down several buildings, including the White House and the Capitol. This event, known as the Burning of Washington, remains a significant moment in the city's history.

2. In 1919, the 19th Amendment to the US Constitution was passed by Congress, giving women the right to vote. This was an important milestone for women's rights and led to increased participation in politics and civic life.

3. In 1963, civil rights leader Medgar Evers was assassinated in Jackson, Mississippi. This event sparked a wave of protests and civil unrest across the country, including in Washington, DC.

4. In 1989, a student-led pro-democracy movement in Beijing, China culminated in a violent crackdown by the Chinese government on June 4th, resulting in the deaths of thousands of protesters. This event, known as the Tiananmen Square massacre, prompted international outrage and protests, including in Washington, DC.

5. In 2019, Washington, DC became the first city in the United States to pass legislation banning the use of non-biodegradable disposable food and drink containers. This new law is aimed at reducing plastic waste and promoting sustainable practices in the city.