Muslims, Magyars, and Vikings all invaded and broke the empire
Frederick Jackson Turner and the frontier. A year after the Oklahoma Land Rush, the director of the U.S. Census Bureau announced that the frontier was closed. The 1890 census had shown that a frontier line, a point beyond which the population density was less than two persons per square mile, no longer existed.
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Why does an economic choice involve giving up something else? People make choices because they cannot have everything they want. All choices require giving up something (opportunity cost) Economic decision-making requires comparing both the opportunity cost and the monetary cost of choices with benefits.
Answer:
Corn was an important crop to the Native American. It is their main food and eaten everyday. Corn was found to be easily stored and preserved during the cold winter months. To Native Americans, corn is their food security during rough economic times or in the face of natural disasters.
Explanation:
