Felix dies natalis, Roma! (Happy birthday, Rome!) This week on the 21st of April is the traditional date given for the founding of Rome. According to Roman mythology, the founders were Romulus and Remus, twin brothers and supposed sons of the god Mars and the priestess Rhea Silvia. The twins were then abandoned by their parents as babies because of a prophecy that they would overthrow their great-uncle Amulius, but were saved by a she-wolf who nursed them. Romulus killed his brother after a vicious quarrel and went on to establish a city which he named after himself.