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War

War

Season 1 Episode 1
53:39
Religion

Religion

Season 1 Episode 2
53:39
Cities

Cities

Season 1 Episode 3
53:40
First Civilizations Season 1

Trade

Season 1 Episode 4
53:40
Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
Tuberculosis: The Forgotten Plague

Tuberculosis: The Forgotten Plague

Season 6 Episode 5
26:49
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First Civilizations

The Merchant's Seal

The merchant’s seal was a guarantee of quality goods.