It was reasonably justified because they believed that it worked and as they were religious they believed that what they did actually worked and appeased the gods. The human sacrifices actually did it voluntarily, although probably not all, since they believed that it was their duty. This was not unlike numerous other places throughout history where human sacrifice to gods was a common thing and done all the time. They didn't know any better and actually believed it to be true.
Legalism and Confucianism.
Legalism was based on a strict and orderly government, and Confucianism helped by creating some basic rules that all followed, like respecting elders.
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Democracy--Tocqueville traveled to the US from France and observed the democratic nature of the country.
Tocqueville was surprised by the voice ordinary citizens had in America. The lowest of society could vote (if male) and had access to basic education and jobs.
Answer:
Higher wages
Explanation: This question is attempting to explain the reasons for migration. Push and pull factors play a role in the decision of human beings to leave one place or country and migrate elsewhere.