[Tagging] unfinished railway of historic importance

[Steve Bennett]

On Sun, Feb 26, 2012 at 2:53 PM, Martin Koppenhoefer
<dieterdreist at gmail.com> wrote:
> you could use abandoned_date (like start_date) and have the
> before/after completion part in another tag. Multiple things (date and
> status) for one key should possibly be avoided.

+1

 Keep things simple for the person reusing the data:

abandoned=yes
abandoned_date=1853
completed_date=

Steve