1821 https://w3id.org/arco/resource/TimeInterval/1821 an entity of type: TimeInterval rdfs:label 1821 1821 - arco:endTime 1821 arco:startTime 1821 1821 ? 1821? ti:time 1821 l0:name 1821 1821 - rdf:type ti:TimeInterval data from the linked data cloud