 After February was added to the Roman calendar, Februa occurred on its fifteenth day ("").Of its various rituals, the most important came to be those of the Lupercalia.The Romans themselves attributed the instigation of the Lupercalia to Evander, a culture hero from Arcadia who was credited with bringing the Olympic pantheon, Greek laws and alphabet to Italy, where he founded the city of Pallantium on the future site of Rome, 60 years before the Trojan War.