The Volga River is the main water way in western Europe. Glad to help :)
Early society Japan was isolated due to geographic isolation from the rest of the world, which basically means that due to natural barriers between other civilizations. (in this case, natural barrier of oceans since Japan is a chain of islands or an archipelago)
The empire was divided into many provinces and each one of these provinces was governed by a governor and council of ministers. In the provinces there were local officials called rajukas, who became more powerful during the reign of Ashoka.
