{"id":"S2002012009","label":"History--[period subdivision]--Sources","description":"Use this subdivision combination as a form subdivision under names of countries, cities, etc. for collections of source materials pertaining to the history of those places during a specific time period.","source_url":"https://id.loc.gov/authorities/subjects/sh2002012009","normalized_label":"history--[period subdivision]--sources","broader":["http://id.loc.gov/authorities/subjects/sh2002012010"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2002012009","provider":"lcsh","revision":"7acb097aa7e6c64b","taxonomy_revision":"f050b5d4780b1289","title":"History--[period subdivision]--Sources","url":"/topics/S2002012009","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9548765932365964806","address_version":"morton4x16-v1","coordinates":[0,477,20765,41984],"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}