It depends on which time period. But, probably A.
Answer:
Menes was the first pharaoh of egypt .
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It was the birth of communism and it ended up making the industrial revolution possible ( i believe)
Http://www.dummies.com/education/history/american-history/american-preparation-for-world-war-ii/
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There were<span> about 30 legions in the </span>Roman army<span>. Each legion had between 4,000 and 6,000 </span>soldiers<span>, </span>called<span> legionaries. Each legion had ten cohorts. Each cohort was made up of six troops of about 80 legionaries, </span>called<span> centuries.</span>