This is an image of traditional greek dancing when Greek folk music is played. This wardrobe is put on for dancing folk. Greek dancing is line dancing but everyone has their arms around their shoulders.
(Pentozali, Crete) A RUSSIAN-GREEK shared-origins connection is what I always think of when I see the commonality in their dancing. (I don't know WHEN their dance styles were born however, but they have been around a long time.