Answer:
B. the shift of the Roman Empire's capital from Rome to Constantinople
Explanation:
The Western Roman Empire had been on the decline, while the Eastern Roman Empire has been on the rise. Being more powerful and more influential, the capital of the Roman Empire shifted in the Eastern part of it. Constantinople became the capital of the Roman Empire in 330 AD. This led to significant transfer of power toward the East, and big loss of power in the West. The East prospered more and more and became the strongest power in every sense in the region. The West on the other side was crumbling, little by little losing its political, economic, and military power, eventually resulting in its fall.
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Europeans traded sailing equipment to other people so they could have better transportation.
Modern international law recognizes only three lawful justifications for waging war: self-defense, defense of an ally required by the terms of a treaty, and approval by the United Nations.
His efficient assembly line made cars a lot cheaper to produce
