Filter Results Refine these results by: Category: History United States Native American General History North America Military Wars & Conflicts Modern Social History Women Asia Expeditions & Discoveries Russia & the Former Soviet Union Caribbean & West Indies African American Americas Europe Middle East Jewish Revolutionary Latin America Africa Historical Geography Historiography Maritime History & Piracy World LGBTQ+ Canada Oceania Reference Essays Civilization Medieval Holocaust Ancient Polar Regions Australia & New Zealand Study & Teaching 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