WWW: PBS Conquistadors On-Line Learning Adventure

Long before Columbus sailed the ocean blue, the Inca controlled 2,500 miles of South America’s west coast and ruled over 12 million people. Meanwhile, in Central Mexico, over a quarter million people lived in Tenochtitlan on two islands constructed in a “sea of water lilies.” These were not the disorganized, nomadic tribes that I was introduced to when I was in grade school. The pre-columbian Americas featured highly coordinated, centralized empires: Engineers designed intricate road and canal systems; astronomers tracked celestial bodies; and state bureaucrats meticulously calculated and recorded the tribute obligations of local communities.  Continue reading