Each region formed its own choreography and style to fit in with their own ways. For example, island dances have more of a "watery" flow to them, while Pontic dancing closer to Black Sea, is very sharp.
There are over 4,000 traditional dances that come from all regions of Greece. There are also Pan Hellenic dances, which have been adopted throughout the Greek world. These include the tsamiko, syrtos, and kalamatianos. Traditional Greek dancing has a primarily social function. It brings the community together at key points of the year, such as Easter, the grape harvest or patronal festivals; and at key points in the lives of individuals and families, such as weddings. For this reason, tradition frequently dictates a strict order in the arrangement of the dancers, for example, by age.
Greek dances are performed often in diaspora Greek communities, and among international folk dance groups.
Greek Folk Dances