Answer:
It uses archaic phrasing such as Grieve not so, indicating the poem is set long ago.
Explanation:
The main reason why we can conclude that the poem describes an event that happened a long time ago is because of the archaic language that the daughter uses to address her mother. The way in which the daughter talks is very different from the way most people nowadays talk. On the other hand, the fact that the daughter consoles the mother, that she is described as "just-grown" and that the little sisters are speechless could happen during any time period.
