Fatto generale: 2851 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2851 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 2851 is an uninteresting number.
Data storica: October 21st is the day in 1987 that Jaffna hospital massacre is carried out by Indian Peace Keeping Force in Sri Lanka killing 70 ethnic Tamil patients, doctors and nurses.