This is quite cool actually. By which parameter do you determine how prominent the people are?

Beautiful rendition! Loved moving around my country and seeing all the different names.

I curious how it determines if a person is alive or not

I checked two promiment figures in my region, one who is very much alive and another who's certianly dead, for both it said "probably yes".

I checked the Wikidata entries for both, and one had no death info (as they're alive), while the other had all of the info (cause, location, etc.)