In which city was the Swiss Patent Office where Einstein worked?

Correct answer: Bern

The correct answer is Bern. Albert Einstein worked as a technical examiner at the Swiss Patent Office in Bern, Switzerland, before his academic career became famous. This detail belongs to his biography because the patent-office job supported him while he continued thinking about important scientific questions. Ulm was his birthplace, Munich was connected with his early childhood, and Zurich was associated with his education and later academic life. Therefore, those cities are plausible biographical distractors, but they do not answer the specific question about the Swiss Patent Office. Remember the useful pair: Einstein and the patent office at Bern.