Submitted by György Chityil ... on Fri, 01/19/2018 - 18:41 Hierarchy: Proper NounDescription: {{archeology}} A prehistoric period of Mesopotamia, circa 6500 to 3800 BC.Ngram: UbaidNgram Text: UbaidSource: WiktionaryIssue: 0Wiktionary tag: archeologyNgram Count: 1