Sources: http://www.kirotv.com/valentines/ 1929244/detail.html http://www.mistupid.com/holidays/ http://en.wikipedia.org/wiki/ Gregorian_Calendar

2: The second month of our Gregorian calendar is February, named from the Latin word “februa”

12: The number of months in the Gregorian and Islamic calendars

13: The number of months in the Jewish calendar

1582: On Feb. 24 of that year the Gregorian calendar was decreed by Pope Gregory XIII, for whom it was named