2013/4/8 Ole Nielsen <on-...@xs4all.nl <mailto:on-...@xs4all.nl>>

not so sure, that "historic" is the right term for stuff completely
gone, currently the key "historic" is used mainly for stuff that was
created a long time ago, but which hasn't necessarily vanished in the
meantime (most of the stuff categorized under "historic" is actually
still there, so there would be some risk of creating confusion using the
same term for another concept). Besides this I agree that it is nice to
tag these states in a uniform way, simply use another term for
"historic", maybe "disappeared", "vanished", "demolished", or simply
delete and formalize a changeset tag?

The exact term can be discussed, that's why we need a proposal. I think there are good reasons to keep track of demolished features. One is for recording the past (think a "openhistorymap.org"), another reason is to prevent accidential remapping of features that have recently been demolished but are still visible in aerial imagery. The undergrounding of power lines is a good example.

Ole

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