Answer:
Among the earliest inventions were the abacus, the sundial, and the Kongming lantern. The Four Great Inventions,the compass, gunpowder, papermaking, and printing – were among the most important technological advances, only known to Europe by the end of the Middle Ages 1000 years later.
Explanation:
Answer:
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- Composition of the Reconstruction Governments
After the north won the war, the president requires the southern states to fill a certain amount of Quota for Minorities to fill in the Government representative seat.
-- Many northern citizens move to the southern side after the war and bringing northern ideology with them.
Opec began an oil embargo of the united states
