There is also that custom, barbarous and exotic, which attends most of the northern tribes… when they depart from the battle they hang the heads of their enemies from the necks of their horses, and when they have brought them home, nail the spectacle to the entrance of their houses. At any rate Posidonius says that he himself saw this spectacle in many places, and that, although at first he loathed it, afterwards through his familiarity with it, he could bear it calmly.
Strabo, IV, 4, 5 in The Celts, 2nd ed. by Nora Chadwick & Barry Cunliffe. New York, NY: Penquin, 1997.










