what is the {start time} for {Ernest Renan} has {member of} as {Hungarian Academy of Sciences} ?
On what date did Ernest Renan become a member of the Hungarian Academy of Sciences?
When did Ernest Renan become a member of the Hungarian Academy of Sciences?
SELECT ?z WHERE { ?j property:start_time ?z . resource:Ernest_Renan property:member_of ?j . ?j property:member_of resource:Hungarian_Academy_of_Sciences }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q157155> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P463> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q265058> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q157155 p:P463 ?s . ?s ps:P463 wd:Q265058 . ?s pq:P580 ?value}