Fatto generale: 1848 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1848 is the smallest value of n for which _{2n}C_{n} is divisible by n^{2}.
Trivia: 1848 is an unremarkable number.
Data storica: January 21st is the day in 1977 that President Jimmy Carter pardons nearly all American Vietnam War draft evaders, some of whom had emigrated to Canada.