For example, a naive query https://w.wiki/4pdJ for the longest lived (deceased) heads of state would need to filter out conflicting or otherwise untrustworthy dates and non-national level states to have more expected results.
That query seems to include deprecated (by Wikidata to be judged as wrong) dates of death. A better query would only look at truthy values (those values with the best rank).
That query seems to include deprecated (by Wikidata to be judged as wrong) dates of death. A better query would only look at truthy values (those values with the best rank).
Sure, here’s a version using truthy birth and death dates, though still very imperfect https://w.wiki/4q4Q