General fact: 842 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 842 is the ratio of Fibonacci numbers.
Trivia: 842 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Historical date: April 21st is the day in 1894 that Norway formally adopts the Krag-Jørgensen rifle as the main arm of its armed forces, a weapon that would remain in service for almost 50 years.