Hercules' Club (also Hercules-club, Club-of-Hercules; German Herkuleskeule, Donarkeule) is a Roman Empire and Migration era artefact type. Roman era Hercules's Clubs appear from the 2nd to 3rd century, spread over the empire (including Roman Britain, c.f. Cool 1986), mostly made of gold, shaped like wooden clubs.A specimen found in Köln-Nippes bears the inscription "DEO HER[culi]", confirming the association with Hercules. Indeed, already Tacitus mentions a special affinity of the Germans for Hercules, stating