||The Thomas Banchoff papers on the fourth dimension (1843-2013) contain his research and writing on the mathematical and philosophical theories of the fourth dimension, its visualization, and historical conceptions of it. Included are correspondence, conference proceedings, articles, manuscripts, clippings, CD's, and DVDs. The material covers mathematical, artistic, religious, and philosophical concepts of hyperspace and the higher dimensions from the mid-nineteeth century to the present, along with Banchoff's research on Edwin Abbott Abbott and his nineteenth-century novella,
Flatland. Also included are audiovisual materials in a number of formats representing film and musical interpretations of
Flatland, teaching materials, class recordings, and geometry and calculus texts and presentations.