This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
ETHER DAY is celebrated on 
Select and explain. 
A. 20-Oct, B. 16-Oct, C. 20-Nov, D. 16-Nov
B: 16-Oct
Answer: B: 16-Oct 
Explanation: Ether Day," Friday 16 October 1846 marks the first successful demonstration of the inhalation of ether vapour as a means of overcoming pain of surgery by the dentist William Thomas Green Moon Ref ganong's review of medical physiology 25e 561