India's caste system has four main categories that are subdivided into thousands of subcastes called

What was the midwest states often called because they were located in the center of the nation

Which of the following was not a characteristic of phoenician cities? a. they were located on islands. b. they had harbors on each side. c. they were built on land jutting out to the sea. d. they were surrounded by high stone walls and towers.

Did egypt invent wheels or sailboats