General fact: 20835 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 20835 is an unremarkable number.
Trivia: 20835 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Historical date: January 15th is the day in 1933 that a twelve-year-old girl experiences the first Marian apparition of Our Lady of Banneux in Banneux, Belgium.