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asia japan china korea manchuria c20th 1900s 1910s 1920s sources images photos primary botany culture people plants

international law modern history secondary sources annexation treaty china japan korea c20th

us usa canada america images ads C20th 1910s 1920s 1930s 1940s 1950s advertisements sources primary society culture

usa photos photography images sources primary depression us civil war wwi wwii women lincoln c19th c20th 1910s 1930s 1940s

europe america usa modern wwi world war i 1910s britain germany france primary sources images documents c20th posters propaganda postcards

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