I asked this question awhile ago for a BCE to CE inclusive date range
and the answer in 2011 was:
<unitdate type="inclusive" label="Dates:" encodinganalog="245$f"
normal="-2000/2010" era="bce-ce" calendar="gregorian">2000 BCE-2010
If that helps. I could also forward you the entire email exchange.
On Fri, Jan 20, 2017 at 10:11 AM, Ethan Gruber <[log in to unmask]> wrote:
> According to the ISO spec, 0000 is 1 B.C., so "-2099/-1999" is 2100-2000
> The XML schema spec doesn't follow ISO8601 on this, so if you are mapping
> dates into RDF for a SPARQL endpoint (which follows XSD) or planning to do
> any date-based math or chronological sorting in XSLT, XQuery, etc., the
> dates will need to be converted to -2100/-2000 for this purpose.
> On Fri, Jan 20, 2017 at 10:05 AM, Michele R Combs <[log in to unmask]> wrote:
>> How are others encoding BCE dates? ISO standard seems to be vague on it.
>> Would this be right?
>> <unitdate normal="-2100/-2000" type="inclusive">circa 2100-2000
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