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The Progress of Civilization; Hunting, Herding, Agriculture (mural study, State Capitol, Des Moines, Iowa) (1905~1906) --Kenyon Cox (美国艺术家, 1856-1919)
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Studies of an outstretched arm for the fresco The Drunkenness of Noah in the Sistine Chapel (circa 1508 ~ 1509) --Michelangelo (Italian, 1475 - 1564)