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modern europe america usa asia britain germany japan ussr england wwi wwii war conflict c20th sources documents images primary peace

ancient modern medieval europe britain england uk france germany wwi wwii sources documents images primary imperialism archives

usa america sources documents images primary c20th c19th c18th slavery us civil war wwi wwii rights

america usa modern c19th c20th wwi reconstruction work family women films movies leisure sport culture videos sources primary

usa america modern c17th c18th c19th c20th sources primary wwi wwii depression maps images

germany german medieval modern reformation thirty years war napoleon prussia bismarck wwi wwii weimar nazis cold reunification sources images documents primary

modern europe britain france germany italy spain russia sources c20th wwi wwii ussr usa cold war podcasts medicine science

america usa modern sources documents images primary c20th c19th temperance prohibition alcohol wwi 1920s 1910s 1930s