Genetic Map of Europe. If you have had your DNA analyzed, you have a good idea of the information on this map, though it is given by tribal or cultural group, and not haplo-group. Over time, the general direction of population movement was west.
Celtic Europe 1850 BC- AD 400 1850 BC: Celto-Ligurian culture 1600 BC: Bronze work 1200 BC: Urnfield Celts 600 BC: Iron work 390 BC: Celts sack Rome and enter history as "Gauls." 44 BC: A Roman army under Julius Caesar conquers Gaul.