Was the Weimar Republic doomed from the start?

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• 2. Name of German bank that went bankrupt following the Wall Street Crash of October 1929. (6)
• 3. Leaders of the Spartacists, Karl Liebknecht and... (4, 9)
• 4. This policy renounced war as an instrument of foreign policy. (7, 6, 4)
• 5. The name of the new currency introduced by Stresemann. (10)
• 6. Name of Hitler's diary he wrote in prison. (4, 5)