Mobius
also Moebius, 1904 in reference to the Mobius strip (earlier Moebius unilateral paper strip, 1899), named for German mathematician August Ferdinand Möbius (1790-1868), professor at Leipzig, who devised it and described it in 1865 ("├╝ber die Bestimmung des Inhalts eines Polyeders", Nov. 27, 1865).