Fatto generale: 1935 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1935 is the maximum value of n so that there exist 4 denominations of stamps so that every postage from 1 to n can be paid for with at most 17 stamps.
Trivia: 1935 is a boring number.
Data storica: April 18th is the day in 1930 that BBC Radio announces that there is no news on that day.