Increased brain size allowed Homo sapiens to become more successful hunters than the early humans that came before.
The term homo sapiens refers to the only extant human species. The name is Latin for "wise man" and was introduced in 1758 by Carl Linnaeus.
Brain size in both Neanderthals and Anaromically Modern Human (homo sapiens) is significantly larger on average than brain size in H. erectus. Neanderthal and AMH brain sizes are in the same range.
Economic hardship created by the Great Depression
The early part of the Vedic period, was an age of economic self-sufficiency and consequently there was little scope for an exchange of commodities. All the rural centres were self-supporting. Every house-holder produced the necessaries of life—his farm producing his food-grains and other necessaries, the industry of the women of his household supplied him with his clothing, while the craftsmen attached to the village did the rest. Consequently, there was no inter-dependence between two neighbouring local areas. The surplus product was kept for future consumption. This state of full economic independence did not however last long. Society became complex.
A large section of the community gave up the simple agricultural life; the primitive arts and crafts drew away a large number; owing to these and various other causes, there arose a scope for interchange of commodities between different local areas.
Emperor - the supreme ruler of an empire
Shogun - a title for a military ruler in Japan
Bakufu- governments that ruled Japan from 1192-1868, also known as Shogunate.
Jito - land stewards appointed by the shogunate during Feudal Japan.
Shugo - a title translated as protector which was given to certain officials in Feudal Japan
Shoen - a field or manor in Feudal Japan
Samurai - a member of the Japanese warrior caste
The Warring States Period - A long period of Civil War from 1467 to 1615 in the Sengoku Period.
Daimyo - wealthy landowners in Feudal Japan.