Conversation so far:
When did Wilhelm II dimiss Otto von Bismark?
He dismissed the German longtime chancellor, Otto von Bismarck, in 1890.
What did Otto von Bismark do wrong for Wilhelm II to dismiss him?
What lead Willhelm II to dismiss Otto von Bismark?
Is Bismarck its own country?
Bismarck is not a country.

Question: Can he take back the dismissal?
Self-contained rewrite: Can Wilhelm II take back the dismissal of Otto von Bismarck?