query: ?#SELECT ?h ?hLabel ?inception ?dissolved ?coor
  {
  	?h wdt:P31 wd:Q3024240 .
  	?h wdt:P571 ?inception .
  	OPTIONAL { ?h wdt:P576 ?dissolved } .
  	FILTER (?inception < "1755-00-0T00:00:00Z"^^xsd:dateTime)
  	FILTER (?dissolved > "1754-00-0T00:00:00Z"^^xsd:dateTime || !Bound(?dissolved) )
  	SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
  	OPTIONAL { ?h wdt:P625 ?coor } .
  }
  ORDER BY ?inception