When did the guptas rule india?

What are the two powers that the federal and state governments share?

The information box says that the han added 4,000 miles of wall. refer to the mileage scale. how can this be true?

Who ever answers first gets ! trade in the vedic age led to a. the rise of kingdoms because of the importance of controlling land and long-distance travel routes b. the building of an extensive system of roads because of the difficult terrain c. the creation of a large banking class because of the need to exchange different currencies d. the development of a centralized government that controlled the economic decisions of its people