Fait mathématique: 5118 is the maximum value of n so that there exist 6 denominations of stamps so that every postage from 1 to n can be paid for with at most 12 stamps.
Culture générale: 5118 is an uninteresting number.
Date historique: January 4th is the day in 1998 that a massive ice storm hits eastern Canada and the northeastern United States, continuing through January 10 and causing widespread destruction.