{"database": "deitydb", "table": "periods", "rows": [["PER_CEL_MEDIEVAL_WELSH", "Celtic/Welsh", "Medieval Welsh", 1050, 1400, "Period of the Four Branches of the Mabinogi and other Welsh mythological texts preserved in the White Book of Rhydderch (c. 1350) and Red Book of Hergest (c. 1382). Linguistic evidence dates the Four Branches composition to c. 1050-1120 CE; oral traditions behind them are older."]], "columns": ["period_id", "tradition", "period_name", "start_year", "end_year", "notes"], "primary_keys": ["period_id"], "primary_key_values": ["PER_CEL_MEDIEVAL_WELSH"], "units": {}, "query_ms": 238.65138399924035, "source": "jebboone/deitydb", "source_url": "https://github.com/jebboone/deitydb", "license": "MIT", "license_url": "https://opensource.org/licenses/MIT"}