Charlemagne, also known as Charles the Great, was born in 742 and died in 814. He became King of the Franks (French) in 768, King of Italy in 774, the first Holy Roman Emperor and the first Emperor in western Europe since the collapse of the Western Roman Empire. Charlemagne was the leader of many historical and victorious battles which united much of Europe.
I don't know what region you are specifically talking about but typically, colonists pushed into native American lands stealing them and killing them when they refused to move.
Colonist also brought diseases from Europe that killed a large number of the native population and engaged in constant warfare with them. Native Americans would raid colonies and vice versa.
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The steel highway improved the lives of millions of city dwellers. By the 1890s, the United States was becoming an urban nation, and railroads supplied cities and towns with food, fuel, building materials, and access to markets. The simple presence of railroads could bring a city economic prosperity.
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I hope this helps :)