What is the X in X-mas?
ancient chain dance of Greece. It was described by Lucian (c. AD 125-190) and is still danced today in many varieties in the Greek islands. Traditionally, it was danced by segregated lines of men and women, a youth leading the line of girls; lines now are frequently mixed. The dancers in the chain maintain a simple fundamental step, but the leader improvises, often breaking away from the line