query: SELECT ?item ?itemLabel ?start_time
  WHERE 
  { ?item p:P2962 ?statement.                            
    ?statement ps:P2962 wd:Q752119; pq:P580 ?start_time.
    FILTER (?start_time >= "1967-01-01T00:00:00Z"^^xsd:dateTime) .
    FILTER (?start_time < "1968-01-01T00:00:00Z"^^xsd:dateTime) . 
  }