sentences:  The Bronze Age, which in Ireland is dated from 2200–600 BC, also left its mark on the Dublin region.A variety of bronze and gold artifacts which have been discovered in the vicinity of the modern city – among them cauldrons, side-blown horns, lock rings, sleeve fasteners, striated rings, hair rings and penannular bracelets – indicate a continuous or intermittent settlement of the area.In Ireland the commencement of the Iron Age around 600 BC is generally believed to coincide with the first appearance in this country of Celtic-speaking peoples.