In Bulgaria March 1st is Baba Marta (Grandma March) Day. To welcome the arrival of spring, martenitsi are worn until the wearer first sees a stork or blossoming tree. The red (life and passion) and white (purity) woven threads symbolize the wish for good health. The woven colors also symbolize the need for balance in life. According to Wikipedia there is a similar tradition in Macedonia, Greece, Albania, Romania, and Moldova related to the ancient pagan history of the Balkans and to all agricultural cults of nature.