Arflha,
this seems to be an automated edit without any reference to the community agreement discussion. What is the justification and agreement here?
The Mentioned Wiki Article explicitly mentions estimated values like "start_date=mid C19". No reason to change. Just to fit historical maps this seems like mapping for the renderer https://wiki.openstreetmap.org/wiki/Good_practice#Don't_map_for_the_renderer
please explain.
regards
tux67