Harold Peake,
The Bronze Age and the Celtic World
“ We have seen that about the time that the Celts were leaving the mountain zone for the west, bands of Wiros from the plain, passing through the Moravian gate, across Galicia and Podolia, reached the rich valley of the Koban to the north of the Caucasus mountains. Here they learned the use of iron from their humble neighbours on the other side of the mountains, who were perhaps the Chalybes, and made for themselves steel blades for their swords. ”
