1. In 1776, the battle of Harlem Heights took place during the American Revolutionary War. American troops, led by General George Washington, successfully defended against British attempts to retake New York City.

2. In 1850, the first national convention of the Women's Rights Movement was held in New York City. This convention led to the formation of the National Women's Suffrage Association and laid the groundwork for women's right to vote.

3. In 1926, the famous New York City department store, Saks Fifth Avenue, opened its flagship location on Fifth Avenue. The store, known for its luxury brands and designer fashions, remains a popular shopping destination today.

4. In 1971, the Attica Prison riot began in upstate New York. The four-day uprising resulted in the deaths of 43 people, including 10 correctional officers and civilian employees.

5. In 2001, the tragic events of 9/11 occurred in New York City. Terrorists hijacked four commercial airplanes, two of which were flown into the twin towers of the World Trade Center. The attacks resulted in the deaths of nearly 3,000 people and forever changed the city and the world.