{
  "name": "Known then: the florists' decision, February 1637",
  "desc": "Known then: card for the Dutch florists' decision of February 1637; each item carries its source number from the article.",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Treaties & Tradeoffs",
  "url": "https://treatiesandtradeoffs.com/ideas/tulip-mania/",
  "from": [],
  "how": "",
  "data_by": [
    "Charles Mackay, Memoirs of Extraordinary Popular Delusions (1852), Project Gutenberg, accessed 2026-11-02, public domain",
    "Peter M. Garber, \"Famous First Bubbles,\" Journal of Economic Perspectives 4, no. 2 (1990): 35–54, accessed 2026-11-02, copyrighted, individual figures cited",
    "Thompson & Treussard, \"The Tulipmania: Fact or Artifact?\" (working paper, undated), accessed 2026-10-07, copyrighted, individual figures cited",
    "Anne Goldgar, Tulipmania (University of Chicago Press, 2007), publisher's excerpt pp. 1–7, accessed 2026-11-02, copyrighted, individual figures cited",
    "Anne Goldgar, The Conversation (2018), accessed 2026-10-07, copyrighted, individual figures cited"
  ]
}