As far as I know, to search posts, say, from 2016, requires a tremendous amount of effort: From the "Newest" tab on main math.se, one can search up to five pages back, and then can choose up to 7 pages back, then choose up to nine pages back, then choose ..., then choose 1201 pages back, then hit 1211 pages back, or vice versa, start from the very last post on math.se, and go back two pages at a time, to reach, say 1201.
My point is, it is an exceedingly time-consuming task.
Perhaps I've not yet discovered a simpler, more immediate approach, such as a field some where: "Go to page _____".
If there is no such functionality, are there other ways to back-track on posts from an earlier time?
If there is no such current feature, perhaps we should ask for a feature that allows this?