Am 29.04.2014 17:25, schrieb David Cuenca:

> Is it possible to have just an lower bond, leaving the upper one open?

No. It's a precision interval, not a range. Range Snaks may be introduced in the
future, but for now, you should use dedicated properties for start and end to
express a range.

> I am
> thinking of uses like
> https://www.wikidata.org/wiki/Wikidata:Property_proposal/Generic#earliest_date

That's exactly the kind of property that *doesn't* need an interval or open
precision: the earliest date is a precise point.

> For things like "circa" I don't see any clear solution other than "inventing"
> some ranges...

Yes. I think it's reasonable to do that along the same lines that you do when
reading "ca 1850": I would read that as +/- 10 year. "ca 2014" is probably +/- 1
year, and "around August 1986" is +/- 1 month, while "around August 10" is
probably +/- a week or so.

-- daniel

--
Daniel Kinzler
Senior Software Developer

Wikimedia Deutschland
Gesellschaft zur Förderung Freien Wissens e.V.

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