Fabrizio Carrai, 07/09/19 09:53:
Since the oldest know person was 122, what about to
set "date of death =
unknown value" for all the persons resulting older such age ?
It seems to me a sensible thing to do. It's good you asked because it's
better to avoid the risk of conflicting mass changes.
I wounder if we need a qualifier to allow identifying this as an
inferred piece of data: do people sometimes state "unknown value" when
someone is known to be dead, but we don't know when they did? I would
place a date of death with a precision of a decade or century in such a
case, but I've not checked what's the frequency of such qualifiers yet.
Federico