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[
  {
    "op": "add",
    "path": "/authorities/p086kj9/periods/p086kj96g7t/start",
    "value": {
      "in": {
        "year": "-0549"
      },
      "label": "2500"
    }
  },
  {
    "op": "add",
    "path": "/authorities/p086kj9/periods/p086kj96g7t/editorialNote",
    "value": "This period was ingested without integer values for dates. From the definition of \"Plains Woodland\" as \"2500-200 BP\" in Gregg M., Bozell J.R., Vehik S.C., \"Plains Woodland\", in Peregrine P.N., Ember M. (eds) Encyclopedia of Prehistory, Springer, Boston, MA, 2001, https://doi.org/10.1007/978-1-4615-0523-5_44, it is most likely that these dates were provided in years BP, and without additional clarification, we have parsed them with the traditional date of 1950 as \"present\"."
  }
]