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註釋This Encyclopedia contains a very wide range of information regarding the various historical periods, civilizations, dynasties, and their significance. It provides a detailed account of the events of World War I as well as World War II. It contains authentic information, which is extensively researched and designed by the experts. It expands the knowledge of a child and renders help in school projects and experiments. It aids in attaining knowledge of the significant historical events as well as enhancing the vocabulary of a child.