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Inside the Pantheon
The Rhineland around the years of 38-15 BCE. Caesar is dead. His adoptive son Augustus becomes the first Roman emperor. In his attemps to secure the eastern border of Gaul, that is adoptive father Caesar had conquered, he sends his best friend and son-in-law Agrippa. There, Agrippa comes up with a plan and by doing that he will initiate the founding of Cologne in 19 BCE.