query: SELECT ?item ?inception ?earliestinception ?latestinception WHERE {
    ?item wdt:P31 wd:Q3305213 .
    ?item p:P571 ?inceptionstatement .
    ?inceptionstatement ps:P571 ?inception .
    ?inceptionstatement pq:P580 ?earliestinception .
    ?inceptionstatement pq:P582 ?latestinception .
    } ORDER BY ?inception
    LIMIT 5000