Fatto matematico: 2510 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 10 stamps.
Trivia: 2510 is an unremarkable number.
Data storica: November 14th is the day in 1982 that Lech Wałęsa, the leader of Poland's outlawed Solidarity movement, is released after eleven months of internment near the Soviet border.