Their lives improved because the material conditions in their surrounding improved. They had higher quality homes, higher levels of sanitation, working sewage, better access to medical care if need be, and many other things.
Both are correct its all about who is living there and where it is. In lower income places where people dont have alot of money they tend to turn to stealing for money/food. Crime is everywhere and it can tend to be worse when you have a bad neighborhood.
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Historical evidence shows that tariffs raise prices and reduce available quantities of goods and services for U.S. businesses and consumers, which results in lower income, reduced employment, and lower economic output. Tariffs could reduce U.S. output through a few channels.
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It occurred because it was cheaper and businesses could retain more money and underpay their workers. The practical reasons are that children are faster, they can fit into smaller spaces and are more controlled.
The Sumerians which was an ancient civilization from Mesopotamia were believed to be the first people to make and use a wheel. This invention is vital to many conveniences we have today :)<span />