# Social conditions--20th century { "id": "S2001008860", "title": "Social conditions--20th century", "url": "/topics/S2001008860", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "97499fa03f0a2c5a", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "615867551406236230", "address_version": "morton4x16-v1", "coordinates": [ 0, 477, 5091, 28672 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Use as a topical subdivision under names of countries, cities, etc., and under classes of persons and ethnic groups. Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh2001008860 No owner-reviewed local answer yet.