Question

the early man was a nomad

Answer 1

Yes, early men were nomads because they don't had any permanent shelter. They wonder from place to place in search of food and shelter. Later ,they started living a shettled life near the river banks of river and started irrigating crops.

Thanks.

Answer 2

Ya, early men were nomad. They spent their life as Hunter-Gatherers and animal herders.
Hope it helps