Convention for events which describe travel
Some events describe a transition from one place to another, where the journey itself is unremarkable. event_728 is an example; the description is "Niobe leaves Thebes and goes to her father in Sipylus."
Currently, the place for this event is given as "unknown," but this does not seem entirely correct. SBE and I agree that in cases like this, where there is a beginning point and an end point to the journey and neither seems more salient than the other, priority should be given to the destination. So, "Sipylus" should be listed as the place here. (This assumes that there exists another event in the list in which the character shows up at the point of departure. If not, one should be created).
I changed the description of the event to reflect the focus of Niobe's arrival in Sipylus.