Loha Yug
Patthar Yug (Iron Age) purana itihaas me uu time rahaa jab log loha ke aujaar ke kaam me laae lagin. Isse pahile admii logan kans (bronze) nai to patthar ke aujaar ke kaam me lawat rahin. Europe, Africa aur Asia ke jaada jagha me log 500 BC talak loha yug pahunch gain rahaa. Europe me, ii prehistory ke time hae, kahe ki Loha Yug ke log aapan itihaas likhe nai sakat rahin.
Loha ekdam sahaj se mil jaawe hae lekin iise aujaar banao karraa hae. Ii kans (bronze) ke milaan me aur jaada garmii me tagle hae.