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usa us america c18th c19th c20th civil war independence expansion wwi wwii depression documents sources primary images audio

usa us america sources primary documents independence revolution civil war indian wars washington colonial antebellum

usa us america c19th c20th wwi world war i wwii ii sources documents primary vietnam depression indian wars 1920s 1930s 1940s 1950s 1960s

usa us america confederacy slavery civil war vicksburg gettysburg richmond battles campaigns letters sources primary documents union

holocaust wwii nazis auschwitz ss gas chambers einsatzgruppen dachau belsen concentration camps images sources primary documents world war ii

usa us america civil war letters sources primary documents

usa us america depression new deal roosevelt images documents sources primary art photos speeches letters

primary sources documents resources philosophy america us usa britain england

images documents primary sources america us usa reference research nypl vodcasts podcasts

medieval crusahes britain france germany middle ages anglo-saxons sources primary documents

flu pandemic spanish wwi primary sources images documents

manuscripts c17th documents primary sources images

china japan korea asia sources history vietnam war primary documents

medieval primary sources church christianity france england germany italy spain documents north africa

france britain primary sources europe documents archives germany c20th

usa america us war of independence c18th c19th military republic archives sources british empire documents primary

ancient medieval africa asia europe america south islam religion buddhism christianity confucianism taoism hinduism polytheism sources documents primary

rome republic principate dominate sources caesar augustus literature primary virgil cicero plutarch polybius documents

usa california primary sources america american civil war wwi wwii depression vietnam rights documents

source analysis evaluation primary sources