Fatto matematico: 388 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 6 stamps.
Trivia: 388 is an unremarkable number.
Data storica: January 22nd is the day in 1927 that Teddy Wakelam gives the first live radio commentary of a football match anywhere in the world, between Arsenal F.C.