What is {significant event} of {Arkansas} that is {start time} is {1861-4-12} ?
On April 12, 1868, what notable event occurred in Arkansas?
What significant event happened in Arkansas on April 12, 1861?
SELECT ?p WHERE { ?r property:start_time ?y . ?r property:significant_event ?p . FILTER ( CONTAINS ( YEAR ( ?y ) , '1861' ) ) . resource:Arkansas property:significant_event ?r }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1612> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P793> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1861-4-12>
} 

SELECT ?obj WHERE { wd:Q1612 p:P793 ?s . ?s ps:P793 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1861')) }