The Irish can be a romantic bunch and every four years, there is a day for roles to reverse and for women to take charge of their romantic destiny. In Irish tradition, February 29, AKA Leap Day, is the day when women can propose to men. But why is the tradition so? Why do women propose on Leap Day, which is also known as Batchelor's Day or Ladies Privilege? Like many Irish traditions, this one has its origins in Irish folklore. Ladies who are planning to propose on Leap Day (February 29) have St Brigid to thank for the tradition.