[Tagging] What to map a site of historical significants...

[John Smith]

Does any one have any thoughts on what to tag a location famous for 2
reasons, first it was a spot where a stage coach was held up by
thunderbolt, secondly because someone did a painting of the event
after the event:

http://en.wikipedia.org/wiki/Bailed_Up

There is no marker at the site or anything else to identify the site,
the only thing I can think of is something like
historic=historical_site, but that seems a bit redundant...