mapsontheweb:American isolationism peaked at the end of the 1930s, just before another World War bro
mapsontheweb:American isolationism peaked at the end of the 1930s, just before another World War broke out. In 1938, the House voted on a constitutional amendment that would require a national referendum before declaring war. This map shows the outcome, with a clear divide:by @Shane_maps -- source link
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