The magna carta began the concept of protected rights
The fear that free territories could be used as bases for the spread of abolition into the South.
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Aristotle introduced the first hierarchical classification system. He divided the life forms he saw into eidos and genos, establishing the basis for taxonomy. He classified 520 animal species, which were primarily from Greece. Many B<span>iologists followed Aristotle's taxonomic system of classifying plants and animals.</span>
One of the greatest changes in the United States was the most of the women had served in the workplace in one way or another during the war, when the men were off fighting. Many did not return to be housekeepers after the war, and some were competing with men returning home. Another change also had to do with the structure of the economy. Almost everyone was involved in the war effort in some way, and we had grown quite efficient. That efficiency was put into mass production of consumer goods on a scale not seen before the war.
