This may be coming in the Roadmap for Timelines, but just in case it isn't I will put it here. There are many events that happen over multiple places, but the current timeline only allows you to put a single location for every event.
Allowing us to add multiple locations for events would show where (for example) military conflict that happens in two countries takes place without needing to make a duplicate.
There are actually a lot of situations where this would be useful, and there's a lot of features in the site which would benefit from not having a limit of 1.
The Team's Response
Will need to be discussed due to low support but it's accepted as such.
If actioned it will be under the purview of primary location / additional locations.
Current score
86/300 Votes · +15620 points