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1939 documents

  • French declaration of war on Germany (1939)The defensive treaty with Poland stood as the legal foundation for France's entry into conflict. This agreement obligated Paris to intervene if Berlin…
  • Einstein–Szilard letterOtto Hahn and Fritz Strassmann reported the discovery of nuclear fission in uranium on the 6th of January 1939. Lise Meitner identified this process as…
  • 1939 German ultimatum to LithuaniaOn the 20th of March 1939, Nazi Germany's foreign minister Joachim von Ribbentrop presented an oral ultimatum to Juozas Urbšys, the foreign minister of…