The Answer:

Vehicles used to transport soldiers injured during battle date back to 11th century Europe. But Bellevue Hospital in New York City is credited with establishing the first hospital-based civilian ambulance service in the United States. The horse-and-buggy teams were organized by Dr. Edward L. Dalton in 1869.

Today the Bellevue Hospital Center is run by New York University's School of Medicine.

—The Fact Monster