For much of the 19th century, this area was the “accident room,” the predecessor to the emergency room. Many MGH employees called it the “bathroom” because it had a bathtub (used for washing patients’ injuries). It was next door to the living quarters of the house pupils, whom we would call medical and surgical residents today. There was a night attendant in the mid-19th century who was known for shouting “teeth in the bathroom!” into the house pupils’ quarters when a patient needed a tooth pulled. They would call for a more experienced surgeon for more complicated emergencies, but they pulled teeth themselves.