I have been playing around with the latest topics URL and found out that you can do something like
/latest?ascending=false&order=activity&solved=no&status=open&before=3
The semantics of before=N puzzles me though. With different N I get different results, but N does not seem to mean days and also not a date in any format I can think of.
I tried things like
/latest?ascending=false&order=activity&solved=no&status=open&before=2018-03-15
and
/latest?ascending=false&order=activity&solved=no&status=open&before=100
but I don’t get the logic.
Can somebody explain how this works?