1. In 1783, the last British troops departed from New York City, officially ending the American Revolutionary War. The city had been occupied by the British for seven years, and the departure marked the beginning of a new era of American independence.

2. On September 26, 1907, New York City's subway system opened to the public, revolutionizing transportation in the city. The system has since become one of the most iconic and extensive subway networks in the world, serving millions of commuters every day.

3. In 1960, the first televised presidential debate was held in New York City between Richard Nixon and John F. Kennedy. The debate was watched by millions of Americans and is considered a turning point in the presidential campaign.

4. On September 26, 1983, the Soviet Union's early warning system detected a missile attack from the United States, leading to an intense period of tension known as the "1983 Soviet nuclear false alarm incident." Though the incident ultimately turned out to be a false alarm, it highlights the potential dangers of nuclear weapons and the need for international cooperation.

5. In 2014, hundreds of thousands of people participated in the People's Climate March in New York City, calling for action to address climate change. The march was one of the largest rallies for environmental causes in history and helped raise awareness about the urgent need to protect the planet.