Knucklebones is the grandfather to the modern-day game of Jacks, except that it was played without a ball. It originated in ancient Greece and was played with sun-bleached neck vertebrae (for example, the bones from a chicken neck). Later on, a wooden ball was added and played with sheep bones. Our game of knucklebones comes with five knucklebones made of clay measuring approximately, two wood balls, game rules, and a muslin carrying bag.