However, the last documented outbreak in the United States was in 1911 (Mayo Clinic, 2011). Before then, there were a number of outbreaks, but none worse than the Second Cholera Pandemic of the mid-1800s. The pandemic began in India, and then swiftly spread across the globe via trade routes.
1 Retrieved October 7 2015 from http://www.acronymfinder.com/Not-Elsewhere-Specified-Or-Included-(trade-exports%2c-customs)-(NESOI).html. 2  APA style: NESOI.
The Northeast Snowfall Impact Scale (NESIS) takes in account a variety of factors and generates a single number that signifies a storm's severity, usually on a scale from one to 10 -- and sometimes higher [source: Science Daily]. With those factors in mind, here is our list of the biggest snowstorms of all time.