Answer:
"In the late 1800s, people in many parts of the world decided to leave their homes and immigrate to the United States. Fleeing crop failure, land and job shortages, rising taxes, and famine, many came to the U. S. because it was perceived as the land of economic opportunity. Others came seeking personal freedom or relief from political and religious persecution, and nearly 12 million immigrants arrived in the United States between 1870 and 1900. During the 1870s and 1880s, the vast majority of these people were from Germany, Ireland, and England - the principal sources of immigration before the Civil War. Even so, a relatively large group of Chinese immigrated to the United States between the start of the California gold rush in 1849 and 1882, when federal law stopped their immigration."
https://www.loc.gov/classroom-materials/united-states-history-primary-source-timeline/rise-of-industrial-america-1876-1900/immigration-to-united-states-1851-1900/
"Their contributions and innovations made modern cities possible"
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<span>a belief or theory that opinions and actions should be based on reason and knowledge rather than on religious belief or emotional response.</span>
His was the last tribe in the Staked Plains to come into the reservation system. Quanah, meaning "fragrant," was born about 1850, son of Comanche Chief Peta Nocona and Cynthia Ann Parker, a white girl taken captive during the 1836 raid on Parker's Fort, Texas.
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