They were soldiers and had been slaves before
In a very general sense, the Romans conquered the Greek cities and kingdoms, but "<span>Romans adopted most, but not all, of the Greek cultural legacy," since the Greeks were the main innovators in the arts and sciences.</span>
Soviet Union tested its first nuclear weapon at Semipalatinsk in Kazakhstan (see also Soviet atomic bomb project). Scientists in the United States from the Manhattan Project had warned that, in time, the Soviet Union would certainly develop nuclear capabilities of its own hope this helps
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It's possible but extremely unlikely to Revive an extinct animal but It is possible to create an organism similar to whatever extinct animal that is in question using its dna or the dna of its relatives. If scientists did revive extinct populations it could have an extremely detrimental effect on humans and our environment.