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May 29, 2018 · Volume 2, number 7, in International Encyclopedia of Unified Science. Univ. of Chicago Press. Hempel, Carl G. 1965 Aspects of Scientific Explanation, and Other Essays in the Philosophy …

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May 11, 2018 · Biology views 3,011,778 updated Jun 08 2018 Encyclopedia of the New American Nation

The development of separate northern and southern economies, westward expansion of the nation, and a spirit of reform marked the era. Source for information on Antebellum Period: U*X*L Encyclopedia …

The capital city, Edo (present-day Tokyo), and the surrounding territory were divided into urban and suburban districts, each led by an appointed governor. Source for information on Tokugawa …