{"id":"S00001431","label":"Eighteen thirty-one, A.D.","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh00001431","normalized_label":"eighteen thirty-one, a.d.","broader":["http://id.loc.gov/authorities/subjects/sh97006193"],"aliases":["1831 A.D.","Eighteen hundred thirty-one, A.D.","Year eighteen thirty-one, A.D."],"source_identifier":"http://id.loc.gov/authorities/subjects/sh00001431","provider":"lcsh","revision":"893a75dc9378d977","taxonomy_revision":"f050b5d4780b1289","title":"Eighteen thirty-one, A.D.","url":"/topics/S00001431","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"578862085698749504","address_version":"morton4x16-v1","coordinates":[0,0,22,23552],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}