Russia left ww1 because in 1917 Germany agree to an armistice and peace with Russia. So my though is they lost in WW1
Answer: The Black Plague was a pandemic through out Europe that lasted from 1346-1353 and killed 25 million people. The positive effect it had for poor people was an end to feudalism and increased wages and innovation.
Explanation:
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Archeologists, historians, and geographers
