The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits. Changes that allow an organism to better adapt to its environment will help it survive and have more offspring.
Evolution by natural selection is one of the best substantiated theories in the history of science, supported by evidence from a wide variety of scientific disciplines, including paleontology, geology, genetics and developmental biology.
The theory has two main points, said Brian Richmond, curator of human origins at the American Museum of Natural History in New York City. "All life on Earth is connected and related to each other," and this diversity of life is a product of "modifications of populations by natural selection, where some traits were favored in and environment over others," he said.
Plentiful water supply and rich fertile land, basic must for humans , the start of the growth
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2.It allowed archeologists to translate hieroglyphics and Demotic writing so we understand Egyptian language
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I believe it's two, gunpowder and crossbow
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The soonest realized crossbows were designed in the main thousand years BC, not later than the seventh century BC in old China, not later than the fourth century BC in Greece (as the gastraphetes).
Gunpowder was developed in China at some point during the main thousand years AD. The most punctual conceivable reference to gunpowder showed up in 142 AD during the Eastern Han administration when the chemist Wei Boyang, otherwise called the "father of speculative chemistry", expounded on a substance with black powder like properties.
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"The Commission supports effective Americanization of new immigrants, that is the cultivation of a shared commitment to the American values of liberty, democracy, and equal opportunity. The United States is one of the most successful multiethnic nations in history. It has united immigrants and their descendants from all over the world around a commitment to democratic ideals and constitutional principles. Those ideals and principles have been embraced by persons from an extraordinary variety of religious and ethnic backgrounds, partly because they permit and protect religious and cultural diversity within a framework of national political unity."
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