The practice of planting, tending, and harvesting crops most likely led to a "surplus of food", which in turn led to the diversification of labor and advancement of society, since people now could focus on things other than farming.
Answer:
~1848 - 1852
Explanation:
The first wave of Chinese immigrants arrived in the US during the late 1840s and early 1850s. People heard about the California Gold Rush and the discovery of an abundance of wealth, so, eager to cash in on these valuable resources, they began immigrating to the US.
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William Henry Harrison, governor of the Indiana territory
The Jungle exposed the terrible situations of the meatpacking industry, brought it to the limelight what was really happening when the government didn't step into businesses. It shadowed a hard working immigrant family and the struggles they faced when coming to America. One of the biggest things it brought to light was the terrible situations seen at a meat packing facility. It also brought up numerous other issues, such as the circumstances employees had to work in, prostitution, and immigration. Although this was a fictional story it was based in reality for a working family. It became widely widespread and people called for change. Sinclair wrote it in hopes that more people would become social democrats. He said 'I aimed at the public's heart and by accident, I hit it in the stomach'. He may not have had as big of an impression as he had expected, but he did get the American people up in arms that Congress passed a bill within weeks to try and talk some of the issues that people saw in The Jungle. This is one of many things that Progressives sought to achieve.
<span>Many cities became industrial centers. Hope this helps!!</span>