"Uruk period" meaning in English

{
  "etymology_text": "Named after the Sumerian city of Uruk.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Uruk period",
      "name": "en-proper noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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          "parents": [],
          "source": "w"
        },
        {
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Sumer",
          "orig": "en:Sumer",
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          "source": "w"
        }
      ],
      "glosses": [
        "A period between circa 4000 to 3100 BC which saw the emergence of urban life in Mesopotamia and the Sumerian civilization."
      ],
      "id": "en-Uruk_period-en-name-d5JafZ8B",
      "links": [
        [
          "urban",
          "urban"
        ],
        [
          "life",
          "life"
        ],
        [
          "Mesopotamia",
          "Mesopotamia"
        ],
        [
          "Sumerian",
          "Sumerian"
        ]
      ],
      "raw_glosses": [
        "(historical) A period between circa 4000 to 3100 BC which saw the emergence of urban life in Mesopotamia and the Sumerian civilization."
      ],
      "related": [
        {
          "word": "Ubaid period"
        },
        {
          "word": "Jemdet Nasr period"
        }
      ],
      "synonyms": [
        {
          "word": "Protoliterate period"
        },
        {
          "word": "Uruk Period"
        }
      ],
      "tags": [
        "historical"
      ],
      "wikipedia": [
        "Uruk period"
      ]
    }
  ],
  "word": "Uruk period"
}

{
  "etymology_text": "Named after the Sumerian city of Uruk.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Uruk period",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "related": [
    {
      "word": "Ubaid period"
    },
    {
      "word": "Jemdet Nasr period"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms with historical senses",
        "English uncountable nouns",
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        "en:Sumer"
      ],
      "glosses": [
        "A period between circa 4000 to 3100 BC which saw the emergence of urban life in Mesopotamia and the Sumerian civilization."
      ],
      "links": [
        [
          "urban",
          "urban"
        ],
        [
          "life",
          "life"
        ],
        [
          "Mesopotamia",
          "Mesopotamia"
        ],
        [
          "Sumerian",
          "Sumerian"
        ]
      ],
      "raw_glosses": [
        "(historical) A period between circa 4000 to 3100 BC which saw the emergence of urban life in Mesopotamia and the Sumerian civilization."
      ],
      "tags": [
        "historical"
      ],
      "wikipedia": [
        "Uruk period"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Protoliterate period"
    },
    {
      "word": "Uruk Period"
    }
  ],
  "word": "Uruk period"
}