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Top of the IA Hierarchies

			............ Literature and Performing Arts
			................ <Named written and performed works>
			.................... <Literary works: Scientific, Instructional, Encyclopedia>
			........................ Speculum maius (encyclopedia, Vincent of Beauvais, 1244)
			............................ Speculum Doctrinale (encyclopedia, Vincent de Beauvais, ca. 1244)
			............................ Speculum Historiale (encyclopedia, Vincent de Beauvais, ca. 1244)
			............................ Speculum Morale (encyclopedia, anonymous compiler, 14th century)
			............................ Speculum Naturale (encyclopedia, Vincent de Beauvais, 1244)