Ethnic groups began to gain independence
Earliest human migrations and expansions of archaic and modern humans across continents began 2 million years ago with the migration out of Africa of Homo erectus. This was followed by the migrations of other pre-modern humans including H. heidelbergensis, the likely ancestor of both modern humans and Neanderthals. Finally, Homo sapiens ventured out of Africa around 100,000 years ago, spread across Asia around 60,000 years ago and arrived on new continents and islands since then.
Knowledge of early human migrations, a major topic of archeology, has been achieved by the study of human fossils, occasionally by stone-age artifacts and more recently has been assisted by archaeogenetics. Cultural and ethnic migrations are estimated by combining archaeogenetics and comparative linguistics.
Agriculture is thought to have developed independently throughout the
world, so there is not necessarily one particular group of people that
could be considered to be the first. However, of the available options
the most likley to be correct would be a) Nomads in Central Asia. The
'fertile crescent' in the East is often referred to in this respect, as
being the first place agriculture was properly developed.
Answer:
Domestication of plants and animals brought total change in the agrarian society. Most people lived nomadic life.Fruits,roots and animal meat was their food. Until the time they learned domestication of plants and animals and they settled in a place and they formed a society
Explanation:
Smallpox, the world health organization came up with a vaccine and had everyone vaccinated
