This is more like the construction date of buildings that have survived. Some early neighborhoods (like palms) have been completely replaced building by building so they really appear as dark here when they weren't. It had a downtown in the 1890s but all those buildings are gone. https://en.wikipedia.org/wiki/Palms,_Los_Angeles#/media/File...

Exactly this -- This is more like the construction date of buildings that have survived. Everything demolished, burned, or replaced is invisible.

Probably should put that front and center.