what is the {point in time} for {Arabian Peninsula} has {population} as {4.74665e+07} ?
At what point was the Arabian Peninsula population recorded as being 4.74665e+07?
When did the Arabian Peninsula have a population of 4.74665e+07?
SELECT ?v WHERE { resource:Arabian_Peninsula property:population ?r . ?r property:point_in_time ?v . FILTER ( CONTAINS ( ?k , '4.74665e+07' ) ) . ?r property:population ?k }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q31945> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1082> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <4.74665e+07> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q31945 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '4.74665e+07')) . ?s pq:P585 ?value}