Did you know Persians have a day devoted for love called “Esfandgan-Mazdegan” and this day has its roots into more than 1700 years B.C.? And guess when is the date, 29 Bahman which is 18 Feb in Gregorian calendar, which almost coincides with the current Valentine day which is celebrated for the same reason. Is not it interesting. You can read more about it in an article published in Persian Journal.