Explain how Mesoamerica was important to the early people of New Mexico.

The Geography of the Americas The Americas constitute one of the world’s four geographical zones. Each of these belts is a large area of the world that developed almost entirely separately from the others during the eras of hunting and gathering and of early agriculture. The four world zones are the Afro-Eurasian zone, the Americas, the Australasian zone, and the Pacific.About 245 million years ago, when all the continents on Earth were fused into one continent called Pangaea, North and South America were more closely packed together. The current shape of Mesoamerica (Middle America) began to emerge as Pangaea broke up, and North and South America separated, not to be rejoined again until about 3 million years ago. This reconnection happened as two tectonic plates moved against each other, causing volcanoes to erupt, which created islands. Sediment gradually filled in among the islands. This had an enormous impact on Earth’s climate, because it reconfigured the ocean currents. Since the Atlantic current could no longer flow into the Pacific Ocean, it turned north up the coast of North America and over to Europe, carrying warm water from the Caribbean that raised temperatures in Europe.Today the land joining the two continents, called the Isthmus of Panama, is only 40 miles wide and 400 miles long. (Isthmus comes from the Greek word isthmos and means a narrow strip of land connecting two larger land areas, with water on either side.) The areas in which civilization developed in Mesoamerica include Mexico and neighboring parts of Central America, all just north of the Isthmus of Panama.

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