what is the {point in time} for {Mannheim} has {population} as {305741.0} ?
At what point did the population of Mannheim reach 305741.0?
when did Mannheim population rise to 305741.0?
SELECT ?n WHERE { FILTER ( ?h = 305741.0 ) . ?h property:point_in_time ?n . ?h property:population ?h . resource:Mannheim property:population ?h }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q2119> .
?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> <305741.0> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q2119 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '305741.0')) . ?s pq:P585 ?value}