For the unknown date case, I also used some imprecise dates in the past, if you set date withe a precision of the century around the last time it wa known active for example, you get something semantically correct and that is probably esaier to handle in queries (athough the way to handle imprecise or overlapping dates interval in date comparison for the query engine is probably not known yet :) I'm curious to know)
2015-04-26 9:29 GMT+02:00 Stas Malyshev smalyshev@wikimedia.org:
Hi!
It would make sense to have a bot run and add dates of novalue for dob dod where we know that people must be dead.
That would actually be opposite of what we want, since novalue would mean they were not born and are not dead. I think you meant "unknown" for date of death, in which case it does make sense.
-- Stas Malyshev smalyshev@wikimedia.org
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