Usman dan Fodio (?u?sm??n dæn ?f??d???) n (Biography) 1754?1817, African mystic and revolutionary leader, who created a Muslim state in NigeriaCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014