When MapMaker was still around, you could see a lot, but not all, of the history of a feature on Google Maps. A submission from an end user would have been visi

When MapMaker was still around, you could see a lot, but not all, of the history of a feature on Google Maps. A submission from an end user would have been visible clearly as such. Imports from third parties would have been less obvious (and definitely wouldn't have named the source).