<span>He divided the empire into two main administrative divisions. He ruled in the east at Constantinople and appointed a co-emperor to rule in the west at Rome. He also appointed successors and assigned them two further divisions of the empire. This allowed them to better defend the borders from invading Goths and Germans.
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The early 1800s is the pre-industrial era in Europe. The answer would be A. The Roman Empire because by the 1800s, the Roman Empire had a complicated network of coastal shipping and roads with large cities by the Mediterranean and they traded with India and China for goods.
