query: embed.html##defaultView:Map
  SELECT ?item ?itemLabel ?p937Label ?coord ?layer {
    ?item p:P106 ?p106stm .
    ?p106stm ps:P106 wd:Q3809586 .
    OPTIONAL { ?p106stm pq:P937 ?p937 . ?p937 wdt:P625 ?coord . }
    OPTIONAL { ?p106stm pq:P582 ?p582 }
    BIND(IF(!BOUND(?p582),'without end date',CONCAT('end year ',STR(YEAR(?p582)))) AS ?layer)
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  ORDER BY DESC(?p582)