Answer:Christopher Columbus greatest contribution
The explorer Christopher Columbus made four trips across the Atlantic Ocean from Spain: in 1492, 1493, 1498 and 1502. He was determined to find a direct water route west from Europe to Asia, but he never did. Instead, he stumbled upon the Americas.Nov 9, 2009
Explanation:
<span>
<span>There
was a lot of tension between Great Britain and China due to the opium
trade of British merchants and the Chinese of the Qing dynasty. Since
the British needed Chinese goods but did not have enough silver for
trading, they decided to exchange Chinese goods for opium instead.
Because of the opium trade, there were many Chinese who became
addicted to the substance. This lead to a high number of unstable
individuals in China. This lead to the Chinese revolting against the
British merchants. This, in turn, lead to the opium war. </span>
</span>
Answer:
The correct answer is: Weak leadership and external invasions.
Explanation:
Emperor Charlemagne (742-814) ruled Western Europe during the middle ages for more over than 40 years. After his decease, his domains had to face the ineptitude of his new rulers -Charlemagne heir, who buy the year 800 did nothing but dissolve the Empire. In addition, external invasions from Muslims, Magyars, and Vikings in the upcoming century ended the supremacy of the western Europeans.
Which revolution are you talking about