{
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  "schema_version": 2,
  "lang": "ja",
  "disclaimer": "onlyfakefacts.com に載っている事実はすべて偽物です。楽しみのために作られたものです。本当のこととして紹介したり、何かの根拠として引用したりしないでください。",
  "disclaimer_en": "Every fact on onlyfakefacts.com is false. They are invented for fun. Do not present them as true or cite them as evidence of anything.",
  "license": {
    "name": "CC BY 4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/",
    "attribution": "Only Fake Facts (onlyfakefacts.com). Every fact is invented and false.",
    "terms": "Reuse with attribution. Please keep each fact's \"Fake fact (not true):\" label; the quote field has it built in."
  },
  "fact": {
    "id": "stairs-down-two-centuries",
    "no": 25,
    "lang": "ja",
    "claim": "階段が発明されてから、それを下りることを誰かが思いつくまでには、およそ200年かかった。",
    "quote": "偽の事実（本当ではありません）：階段が発明されてから、それを下りることを誰かが思いつくまでには、およそ200年かかった。",
    "veracity": "false",
    "category": "history",
    "tags": [
      "stairs",
      "invention"
    ],
    "topics": [
      {
        "id": "stairs",
        "label": "階段",
        "url": "https://onlyfakefacts.com/ja/topics/stairs/",
        "wikidata": "http://www.wikidata.org/entity/Q12511"
      },
      {
        "id": "invention",
        "label": "発明",
        "url": "https://onlyfakefacts.com/ja/topics/invention/",
        "wikidata": "http://www.wikidata.org/entity/Q108696953"
      }
    ],
    "about": "http://www.wikidata.org/entity/Q12511",
    "details": "最初の階段では、人々が何世代にもわたって上でじっと待っていた。発明の後半部分が登場したときには、一週間続く祭りで迎えられた。",
    "builds_on": [],
    "source": {
      "id": "chronicle-of-upward-progress",
      "name": "上昇進歩年代記",
      "url": "https://onlyfakefacts.com/ja/sources/chronicle-of-upward-progress/",
      "text": "上昇進歩年代記",
      "fabricated": true
    },
    "added": "2026-11-13",
    "url": "https://onlyfakefacts.com/ja/facts/stairs-down-two-centuries/",
    "json": "https://onlyfakefacts.com/ja/facts/stairs-down-two-centuries.json",
    "markdown": "https://onlyfakefacts.com/ja/facts/stairs-down-two-centuries.md",
    "translation": {
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      "machine": true,
      "original": "https://onlyfakefacts.com/facts/stairs-down-two-centuries/"
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}