Filter Results Refine these results by: Category: History Europe General History Military Holocaust Wars & Conflicts Asia United States Middle East Medieval Native American World Ancient Modern Africa North America Revolutionary Social History Women Expeditions & Discoveries Renaissance Latin America Oceania Jewish African American Historiography Study & Teaching Polar Regions Historical Geography Maritime History & Piracy Civilization Canada Caribbean & West Indies Islamic Norman Conquest to Late Medieval (1066-1485) Russia & the Former Soviet Union Tudor & Elizabethan Era (1485-1603) Americas Reference Australia & New Zealand Essays Audio Length Less Than 1 Hour 1 to 3 Hours 3 to 6 Hours 6 to 10 Hours 10 to 20 Hours More than 20 Hours