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