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_da...
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