Fatto matematico: 1475 is the maximum value of n so that there exist 5 denominations of stamps so that every postage from 1 to n can be paid for with at most 11 stamps.
Trivia: 1475 is a boring number.
Data storica: January 14th is the day in 1761 that the Third Battle of Panipat is fought in India between the Afghans under Ahmad Shah Durrani and the Marhatas.