What is {uses} of {Pan} that is {time of discovery or invention} is {1970-0-0} ?
Which were the uses of Pan when it was invented in 1970?
What were the uses of Pan when it was invented in 1970?
SELECT ?h WHERE { resource:Pan property:uses ?c . ?c property:uses ?h . FILTER ( CONTAINS ( YEAR ( ?r ) , '1970' ) ) . ?c property:time_of_discovery_or_invention ?r }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q80174> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2283> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P575> <1970-0-0>
} 

SELECT ?obj WHERE { wd:Q80174 p:P2283 ?s . ?s ps:P2283 ?obj . ?s pq:P575 ?x filter(contains(YEAR(?x),'1970')) }