Grandma March Day (or simply Baba Marta, Bulgarian: Баба Марта) is a holiday celebrated in Bulgaria, on the first of March.
Martenitsa - usually in the form of a wrist band, woven by combining red and white colored threads - are worn on that day and through March, until a stork or a bloomed tree is seen, symbolizing warmer weather and well being.
The red and white woven threads symbolize the wish for good health.
While white as a color symbolizes purity, red is a symbol of life and passion, thus some ethnologists have proposed that in its very origins the custom might have reminded people of the constant cycle of life and death, the balance of good and evil, and of the sorrow and happiness in human life.
Martenitsi are always given as gifts. People never buy martenitsi for themselves. They are given to loved ones, friends, and those people whom one feels close to. They are worn on clothing, or around the wrist or neck, until the wearer sees a stork or swallow returning from migration, or a blossoming tree, and then removes the Martenitsa and hangs it on a blossoming tree.