A The plows were not available yet
<span>The Barbarian attacks on Rome partially stemmed from a mass migration caused by the Huns' invasion of Europe in the late fourth century. When these Eurasian warriors rampaged through northern Europe they drove many Germanic tribes to the borders of the Roman Empire</span><span>
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Christianity grew fast under Emperor Constantine and his christian bishops because of state patronage
Around 110,200 to 200,000