[Tagging] new key civilization

[robert at elsenaar.info]

+1
This is a nice and very clear solution.
I like subtags more and more.
It's a kind of Advanced Tagging.

-Robert-

Citeren Daniel Sabo <danielsabo at gmail.com>:

> For clarity, could these be subtags of historic?
> e.g.
> historic=ruins
> historic:civilization=roman
> historic:period=aurelia
>
> That way we can have more descriptive tags without worrying about   
> conflicts with non-historic meanings.
>
> On Jan 11, 2011, at 4:35 PM, M∡rtin Koppenhoefer wrote:
>
>> 2011/1/11 John F. Eldredge <john at jfeldredge.com>:
>>> Perhaps one could have separate tags for civilization and era.    
>>> After all, many of these civilizations overlapped to some degree,   
>>> timewise, while being in different parts of the world.  In some   
>>> cases, the different civilizations traded with each other (for   
>>> example, the Roman and Chinese civilizations traded with each   
>>> other, through intermediaries).
>>
>>
>> yes, era is not what I am looking for. I used to tag the time
>> component (in rare cases) with the key "period", e.g. period=aurelian
>> for one of the city walls of Rome:
>> http://en.wikipedia.org/wiki/Aurelian_Wall.
>>
>> cheers,
>> Martin
>>
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