The Great Fire of New York occurred on September 21, 1776, during the American Revolutionary War. The fire started in a small building on the east side of the city and quickly spread due to strong winds and the wooden structures of the time. It destroyed about a quarter of the city, including many homes and businesses. The fire was significant not only for its destruction but also for its impact on the city's development. After the fire, New York began to implement stricter building codes and fire safety measures. This event highlighted the need for better urban planning in the growing city.