On the 11th of September 2001, Al Qaeda attacked American landmarks using passenger planes. Recently Gregs bakery opened a branch in a petrol station near me. When I think of Gregs, I think of the Gregorian Calendar that we use here in the western world; it's the most accurate calendar in the world.
I realised recently that the attack can be used to remember how many days each months has.
Months 4,6,9 and 11 have 30 days in the Gregorian Calendar. February has 28 or 29 on leap years. April, June, September and November has 30 days. All the other months has 31 days, except February.
4 planes were hijacked, that is month 4, April.
The pentagon gained 1 extra side so it had six sides after it was hit. Month 6 is June.
9 and 11 are months September and November. 4,6,9,11 has 30 days. The rest have 31 except February. Bingo.
