Greek was the official language of the Byzantine Empire.
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The spread of the bubonic plague from Central Asia into Europe decimated the populations but increased opportunities for the survivors. An enormous variety of new consumer goods, agriculture, weaponry, religion, and medical science became available in Europe.
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Explanation:
An independent or nonpartisan politician is a politician not affiliated with any political party. There are numerous reasons why someone may stand for office as an independent.
1 trillion is 10x larger than 1 billion.