albanian language albanians anatolian hypothesis anatolian languages ancient greek ancient iranian peoples ancient peoples of italy animal husbandry armenian hypothesis armenian language armenians asha avestan language axe bahuvrihi baltic languages balts bard berserker bronze bronze age cattle celtic languages celts chariot cimmerians dacian language dagger domestication of the horse dragon dumnorix farmer fili galatia gauls germanic languages germanic peoples goat gold greek language greeks hittites human sacrifice illyrians indo-aryan languages indo-european languages indo-european studies indo-iranian languages indo-iranians iranian languages iranian peoples iron italic languages knot kurgan hypothesis modern celts name out of india theory paleo-balkan languages paleolithic continuity theory patronymic phrygian language priest proto-indo-european language proto-indo-european religion proto-indo-europeans rhapsode rigvedic tribes rta rtu sanskrit sarmatians scythians silver skald slavic languages slavic peoples socrates spear tarpan thracian language thracians tocharian languages tocharians tribal chief tumulus vedas warrior weaving werewolf wheel wild hunt world tree