{"id":"S91003311","label":"Kievan Rus--History--Mongol Invasion, 1237-1241","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh91003311","normalized_label":"kievan rus--history--mongol invasion, 1237-1241","broader":[],"aliases":["Batu Khan's Invasion, Kievan Rus, 1237-1241","Mongol Invasion, Kievan Rus, 1237-1241","Tatar Invasion, Kievan Rus, 1237-1241"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh91003311","provider":"lcsh","revision":"141b70be30742ce6","taxonomy_revision":"f050b5d4780b1289","title":"Kievan Rus--History--Mongol Invasion, 1237-1241","url":"/topics/S91003311","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"13892628759061857858","address_version":"morton4x16-v1","coordinates":[0,21,45670,48128],"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}