Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Context : The 7.9257mm Mauser cartridge was adopted by the German Empire in 1905, and was the German service cartridge in both World Wars.
Answer : 1905
Student:
What year was 7.9257mm Mauser made?