1. World AIDS Day: December 1 in New York is marked as World AIDS Day, an internationally recognized day to raise awareness about the AIDS pandemic. The first official World AIDS Day was celebrated on December 1, 1988, and since then it is being observed globally.

2. The Opening of the Verrazano-Narrows Bridge: On December 1, 1964, the Verrazano-Narrows Bridge was opened in New York, connecting Staten Island and Brooklyn. It was the longest suspension bridge in the world at that time, and still remains an iconic landmark of New York.

3. New York's First Daily Newspaper: In 1783, The New York Packet, the first daily newspaper in New York City was published. It was founded by Samuel Loudon, and over time it became an influential publication that helped shape the political landscape of the city.

4. The Great Fire of New York: On December 1, 1835, The Great Fire of New York broke out in Lower Manhattan. The fire destroyed hundreds of buildings and killed several people. It was one of the most devastating fires in the history of New York, and led to significant changes in the city's firefighting infrastructure.

5. New-York Historical Society Opened: On December 1, 1804, the New-York Historical Society was founded in New York City. It is one of the oldest cultural institutions in the city, and has an extensive collection of historical artifacts, manuscripts, and artwork related to New York City and the United States.