<span>The Incas built temples, forts and roads out of huge stone blocks and were the first to build suspension bridges.
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Answer:
Evolution and Natural change.
Explanation:
The Continental Congress adopted the Articles of Confederation<span>, the first constitution of the United States, on November 15, 1777. However, </span>ratification<span> of the </span>Articles of Confederation<span> by all thirteen states did not occur until March 1, 1781.</span>
Slavery among Native Americans in the United States<span> includes slavery </span>by<span> Native Americans as well as slavery </span>of<span> Native Americans roughly within the present-day United States. Tribal territories and the slave trade ranged over present-day borders. Some </span>Native American tribes<span> held war captives as slaves prior to and during </span>European colonization<span>, some Native Americans were captured and sold by others into slavery to Europeans, and a small number of tribes, in the late eighteenth and nineteenth centuries, adopted the practice of holding slaves as </span>chattel<span> property and held increasing numbers of </span>African-American<span> slaves.</span>