Question

why did early man carry load on his back?​

Answer 1

Early man used to carry heavy loads such as big coins made of rocks, foods, clothes, goods, etc. because at that time the wheel was not invented. After that revolution of wheel, goods and other things were easily carried from one place to another. Early wheels were either made up of stone or wood.

Answer 2

Early man was used to carry load on his back because at that time he was not having any means of transport. After long time he started using animals such as ox, donkeys, etc for transportation of goods later after the evolution of stone age man he started creating tools and wepone by cutting and chipping wood, stones, bones, etc

where after he also invented wheel after which the new eara of transportation started.

hope it helps...