query: SELECT ?item ?itemLabel ?itemDescription ?start ?end
  {
  	wd:Q472 p:P17 ?st . ?st ps:P17 ?item . 
      OPTIONAL { ?st pq:P580 ?start }
      OPTIONAL { ?st pq:P582 ?end }
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  ORDER BY DESC(?start)