You will be given a definition of a task first, then some input of the task.
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.

Context : The Vetterli rifles were a series of Swiss army service rifles in use from 1869 to circa 1890, when they were replaced with Schmidt--
Answer : 1869
Output:
What year is Vetterli rifle associated with?