<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.kwa upande wa ulaya, ni kipindi cha kabla ya historia, kwa sababu watu wa zama za chuma hawakuwa wakiandika kumbukumbu zao.  <response>: in europe, it is a period of prehistory, as iron age people did not write their history down. 