Detailed Instructions: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Problem:Context : Hans Bull Brodtkorb Mohr (26 September 1886 -- 29 January 1973) was a Norwegian educator and international cooperation activist.
Answer : 29 January 1973
Solution:
When did the life of Hans Bull Brodtkorb Mohr end?