iron age
type: Concept
broader: prehistory
preferred label: järnåldern @sv
preferred label: rautakausi @fi

prehistory
type: Concept
broader: ages
in scheme: conceptscheme
narrower: iron age
narrower: stone age
narrower: bronze age
narrower: early metal age
preferred label: förhistoria @sv
preferred label: esihistoria @fi

ages
type: Concept
narrower: prehistory
preferred label: aikakaudet @fi
preferred label: tidsperioder @sv

stone age
type: Concept
broader: prehistory
preferred label: stenåldern @sv
preferred label: kivikausi @fi

bronze age
type: Concept
broader: prehistory
preferred label: pronssikausi @fi
preferred label: bronsåldern @sv

early metal age
type: Concept
broader: prehistory
preferred label: tidig metallålder @sv
preferred label: varhaismetallikausi @fi