This society depends on specialized knowledge to bring about continuing progress in technology.

This era pertains to the old stone period.

These species are also called “wise man”.

It is a natural process of biological changes occurring in a population across successive generations.

It refers to the evolution of human characteristics that differentiate homonids (organisms belonging in the Homo genus) distinct from their primate ancestors.

It pertains to the middle stone period.

It pertains to the new stone period.

These species' name means “upright man” with body proportion similar to that of modern humans.

These species' name means “handy man” because of their ability to make and to use tools.

It is the earliest form of human society.

This society relied on herding and domestication of animals for food and clothing to satisfy the greater needs of the group.

In this society the people learned to use human muscle power and hand-held tools to cultivate fields.

This society was characterized by the used of the plow in farming.

This society was characterized by more than just the use of mechanical means of production.

This specie assumes to be the intermediate between man and ape and was discovered in Pleistocene Cave of South Africa in 1924 by Dart.