1. 1792: The New York Stock Exchange was established.

2. 1875: The first Kentucky Derby horse race was held.

3. 1954: The U.S. Supreme Court ruled in Brown v. Board of Education, declaring racial segregation in public schools unconstitutional.

4. 1965: The FBI began investigating the disappearance of three civil rights workers in Mississippi, later known as the “Mississippi Burning” case.

5. 1973: The Senate Watergate Committee began its televised hearings.

6. 1980: Riots erupted in Miami, Florida, following the acquittal of four white police officers in the death of an African-American man, Arthur McDuffie.

7. 1990: The World Health Organization removed homosexuality from its list of mental disorders.

8. 2004: Massachusetts became the first U.S. state to legalize same-sex marriage.

9. 2011: Queen Elizabeth II made a historic visit to Ireland, the first by a British monarch since 1911.

10. 2021: Mount Nyiragongo erupted in the Democratic Republic of the Congo, causing significant damage and leading to evacuations.