While a visiting lecturer in the department of art at Darmouth 1932, the Mexican painter José Clemente Orozco (b. 1883) completed an amazing 24-panel mural on the walls of the reserve book room in the basement of the Baker Library. It is entitled The Epic of American Civilization.
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(Image: Panel 5, "The Coming of Quetzalcoatl," from The Epic of American Civilization. Click to enlarge.)