The Celts migrated to parts of Silesia in at least two waves. The first wave of Celtic settlers came to areas north of the Sudetes at the beginning of the 4th century BC. They represented the La Tène culture. Archaeologists found evidence of Celtic presence dating to that period in areas of loess soils to the south of modern Wrocław, between the Bystrzyca river and the Oława river, as well as on the Głubczyce Plateau, where for example a lot of Celtic coins have been found. Perhaps the largest Celtic settlement in Silesia, was the one excavated at Nowa Cerekwia site in Upper Silesia - it was comparable in size to Boii settlements at Němčice in Moravia and at Roseldorf in Lower Austria. Another Celtic migration to areas of modern Poland occurred probably in parallel with the invasions of Greece and Macedonia in 279-277 BC. At that time Celtic colonization extended also into modern Lesser Poland and Subcarpathia.