World's 1st Air Mail started during Maha Kumbh in 1911
ALLAHABAD: History of Kumbh is replete with a number of interesting facts. One such event, which is a matter of pride for Allahabad is, that world's first Air Mail was started here during the Kumbh in 1911. It was here on February 18, 1911, when French pilot Henri Piquet loaded a sack of 6,500 cards and letters on a two-seater bi-plane stationed at a polo field in Allahabad and soared into the evening sky.
The flight to Naini lasted barely 13 minutes and the plane flew a mere five miles but created history, said Krishna Kumar Yadav director postal services, Allahabad region, talking to TOI.
SOURCE : http://timesofindia.indiatimes.com