Patthar Yug

Ek patthar jiske chok kar ke ek aujaar ke rakam kaam me lawa jaae hae.

Patthar yug me ek admii patthar ke kaam me laae ke perr ke kaate hae.

Patthar Yug purana jamana ke uu time rahaa jab ki log patthar ke tools banawat rahin. Uu logan lakrri aur haddi bhi kaam me lawat rahin lekin patthar se chij kekatata rahin.

Kuchh scietists logan ii soche hae ki ii jamana 2 se lae ke 5 million saal pahile suruu bhaes rahaa.

Iske baad Kans Yug (Bronze Age) suruu bhaes rahaa.

Stone Age ke tiin hissa me baat ajaawe hae: Paleolithic ("purana patthar"), Mesolithic ("biich waala patthar") and Neolithic ("nawaa patthar"). Pottery, Neolithic Stone Age me invent karaa gais rahaa . Kuchh log ii bhi biswas kare hae ki likhna bhi Neolithic stone age me suruu bhaes rahaa.