The New-York Historical Society and NYC Media, the official network of the City of New York, have partnered to produce a special series of one minute videos that feature the staff of the New York Historical Society as they answer some of the most captivating questions ever posed to them about the City’s fascinating and unique history. All the questions are pulled from the book When Did the Statue of Liberty Turn Green?: And 101 Other Questions About New York City.
The question answered in this video is:
When Was Air Conditioning Introduced on the Subway?