1. 1653: New Amsterdam, now known as New York City, was incorporated.

2. 1848: The Treaty of Guadalupe Hidalgo was signed, ending the Mexican-American War and ceding Texas, California, and other territories to the United States.

3. 1887: In Punxsutawney, Pennsylvania, the first Groundhog Day celebration took place.

4. 1922: James Joyce’s novel “Ulysses” was published in Paris.

5. 1980: The United States boycotted the Moscow Olympics in protest against the Soviet Union’s invasion of Afghanistan.

6. 2020: The United Kingdom officially left the European Union, completing Brexit.