what is the {start time} for {Lesotho} has {flag image} as {Flag of Lesotho (1966).svg} ?
When did Lesotho start using a flag image as the Flag of Lesotho in 1966?
SELECT ?value WHERE { wd:Q1013 p:P41 ?s . ?s ps:P41 ?x filter(contains(?x,'Flag of Lesotho (1966).svg')) . ?s pq:P580 ?value}
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1013> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P41> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <Flag of Lesotho (1966).svg> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

When did Lesotho get a flag?