Use queries like this to grab data on the given Wikidata entities: ...

SELECT ?l ?id ?y ?pop WHERE {
  VALUES ?c {wd:Q145 wd:Q26 wd:Q2366 wd:Q22 wd:Q25 wd:Q21 wd:Q9676 wd:Q25230 wd:Q785}
  ?c rdfs:label ?l ;
     p:P1082 [ ps:P1082 ?pop ; pq:P585 ?date ]
  FILTER (lang(?l) = 'en')
  BIND(YEAR(?date) as ?y)
  BIND(STRAFTER(STR(?c), 'http://www.wikidata.org/entity/') as ?id)
}

Used https://en.wikipedia.org/wiki/Terminology_of_the_British_Isles to derive two overlapping hierarchies. Uses Wikidata IDs as codes.

Fix up SKOS so it's ok for reasoning.

Grabbed skos.rdf from http://www.w3.org/TR/skos-reference/skos.rdf