The photos show what it was like to go holiday shopping in New York City 100 years ago

 During the Wisconsinan glaciation, the New York City region was situated at the edge of a large ice sheet over 1,000 feet (300 m) in depth. The ice sheet scraped away large amounts of regolith, leaving the bedrock that serves as the geologic foundation for much of New York City today. Later on, movement of the ice sheet would contribute to the separation of what are now Long Island and Staten Island.