Pontos means sea. Pontioi used to live between Russia and Turkey. They were Greeks sent there in Byzantine era to protect the borders. They were strong passionate people. After the last wars between Turkey and Greece, there was a population exchange, so many of them had to leave their land to come to Greece. Many of them were killed, that is why they always wear black. They show their constant grieve. Their costume is complete with a pair of sharp knives.