The finale episode examines an ancient civilization unlike any other, that of the Indus Valley. Rather than imposing order through war or religion, it relied on the free flow of trade. The exchange of goods promoted wealth, co-operation and trust.
Historian Michael Scott begins his journey through Sicily on the slopes of Mount Etna, Europe's largest active volcano. For the ancient Greeks, the island was a land of gods and monsters - a dangerous and unpredictable world. Michael discovers how 3,000 years ago, the Greeks began to settle on Sicily's east coast - planting their olives and vines and building great city states that soon came to rival even Athens itself. He learns how great battles were fought between the Greeks and the Carthaginians for control of the island. How the Romans made it their first foreign colony and stripped Sicily of its forests to plant vast fields of grain.
Was America's first billionaire, John D. Rockefeller, a greedy robber baron, a generous philanthropist, or both? And did the oil tycoon exploit America's poor or give them access to much-needed energy? Historian and Hillsdale College professor Burt Folsom, author of "The Myth of the Robber Barons," reveals the truth about the Rockefeller empire.
It seems an odd thing to crow about given the cultural wealth of Edo, at the time the largest city in the world, but this pride in the city's water system wasn't misplaced. Cool, pure water carried by pipes to the city's remotest corners was indeed a byword for the quality of life in Edo as well as being the lifeblood of the city's prosperity.
In the third episode Mary takes an in-depth look at the question of identity and citizenship within the Roman Empire. What did it mean to be, or to become, Roman, and how did the very different parts of the empire react to Roman rule?
We visit ancient cities and battlefields, great ruins and wild countryside, all in his search to uncover how the ancient Greeks thought and lived. What he finds is that ancient Greece was a seething tornado of strange, unsettling and downright outrageous customs and beliefs, inhabited by a people who could be as brutal as they were brilliant.