1. On February 27, 1922, a fire broke out in the Knickerbocker Theatre in Manhattan, killing over 100 people. The tragedy led to new safety standards in the construction of theaters and public buildings.

2. In 1933, the temperature in New York City dropped to -12°F, the lowest ever recorded in February. The extreme weather caused frozen pipes and water shortages for residents.

3. On February 27, 1940, legendary jazz musician and composer Duke Ellington recorded his famous piece "Take the A Train" in New York City. The song became a signature tune for the New York City subway system.

4. On this day in 1960, the first fully automated post office in the United States opened in Providence, NY. The innovative technology allowed customers to buy stamps and send letters with minimal human interaction.

5. In 2015, the One World Trade Center observatory opened to the public on February 27. The observatory offers stunning panoramic views of New York City from the tallest building in the Western Hemisphere.