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Your answer is 400 years!
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Answer: Internal dissension or external pressure
I would imagine that they where angry even tho I have no idea what message they got
They standardized weights, measures, writing and standards
Imperialism: a policy of extending a country's power and influence through diplomacy or military force.
"the struggle against imperialism"
HISTORICAL
rule by an emperor.
EXAMPLE: ENGLAND TRYING TO TAKE OVER THE USA.