{
  "name": "Louisiana Purchase: figures, prices and conversions",
  "desc": "One row per figure named for New Orleans or Louisiana in 1803, plus a later federal cost figure: who named it, the amount and unit as the source gives them, a dollar figure where one is stated or converted, the formula for each conversion, the qualifier and the source.",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Treaties & Tradeoffs",
  "url": "https://treatiesandtradeoffs.com/negotiation/louisiana-purchase/",
  "from": [
    "American State Papers, Foreign Relations, vol. II (1832)",
    "Treaty and conventions of 30 April 1803 (Hunter Miller, ed., 1931)",
    "Bureau of Land Management, Public Land Statistics 2024"
  ],
  "how": "Compiled by Treaties & Tradeoffs from the data listed",
  "data_by": [
    "American State Papers, Foreign Relations, vol. II (Washington: Gales and Seaton, 1832), pp. 542–543, 552–553, 558–559, accessed 2026-11-02, public domain",
    "Treaty and two conventions of 30 April 1803, text in Hunter Miller (ed.), Treaties and Other International Acts of the United States of America, vol. 2 (Washington: GPO, 1931), accessed 2026-11-02, public domain",
    "Bureau of Land Management, Public Land Statistics 2024, Table 1-1, accessed 2026-11-02, US government work"
  ]
}