{
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  "endpoint": "timeline",
  "stock_code": "9031",
  "company_name": "西日本鉄道",
  "content_lang": "ja",
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  "updated": "2026-08-17",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/9031/",
  "source": {
    "primary": [
      "有価証券報告書",
      "公式サイト沿革"
    ],
    "extraction": "有価証券報告書の沿革を基礎に、社史・報道で補完",
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  "timeline": [
    {
      "date": "1908/12",
      "importance": 1,
      "event": "九州電気軌道を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1911/6",
      "importance": 1,
      "event": "東本町〜大蔵間で軌道事業開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1924/4",
      "importance": 1,
      "event": "九州鉄道、福岡〜久留米間で軌道事業開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1929/8",
      "importance": 2,
      "event": "バス事業開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1932/7",
      "importance": 1,
      "event": "到津遊園開園",
      "source": "有価証券報告書"
    },
    {
      "date": "1939/7",
      "importance": 2,
      "event": "九州鉄道、福岡〜大牟田間全線開通",
      "source": "公式サイト沿革"
    },
    {
      "date": "1942/9",
      "importance": 3,
      "event": "陸上交通事業調整法により九州鉄道など4社を合併、西日本鉄道に商号変更",
      "source": "有価証券報告書"
    },
    {
      "date": "1943/2",
      "importance": 1,
      "event": "プロ野球球団「西鉄軍」発足",
      "source": "公式サイト沿革"
    },
    {
      "date": "1943/7",
      "importance": 3,
      "event": "九州自動車を合併、福岡県下のバス事業を統合（1944年7月まで）",
      "source": "有価証券報告書"
    },
    {
      "date": "1946/10",
      "importance": 1,
      "event": "西日本車体工業を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1948/12",
      "importance": 1,
      "event": "航空会社代理店業開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1949/5",
      "importance": 1,
      "event": "東京証券取引所・大阪証券取引所に株式を上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1949/6",
      "importance": 1,
      "event": "福岡証券取引所に株式を上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1962/4",
      "importance": 1,
      "event": "本店を福岡市天神の福岡ビルに移転",
      "source": "有価証券報告書"
    },
    {
      "date": "1963/3",
      "importance": 1,
      "event": "福岡交通センター（現博多バスターミナル）を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1966/4",
      "importance": 2,
      "event": "不動産事業開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1969/6",
      "importance": 1,
      "event": "西鉄ストアを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1971/8",
      "importance": 3,
      "event": "米国にNNR・エアカーゴ・サービス（現NNR・グローバル・ロジスティクス）を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1973/11",
      "importance": 2,
      "event": "高速バス「ひのくに号」運行開始（福岡〜熊本間）",
      "source": "有価証券報告書"
    },
    {
      "date": "1979/2",
      "importance": 2,
      "event": "福岡市内線の軌道事業廃止、宮地岳線一部の鉄道事業廃止",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/3",
      "importance": 2,
      "event": "ソラリアプラザビル完成",
      "source": "有価証券報告書"
    },
    {
      "date": "1992/10",
      "importance": 1,
      "event": "北九州線一部（砂津〜黒崎駅前間）の軌道事業廃止",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/5",
      "importance": 1,
      "event": "到津遊園を閉園",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/11",
      "importance": 2,
      "event": "北九州線（熊西〜折尾間）の軌道事業廃止",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/10",
      "importance": 2,
      "event": "西鉄バス北九州へ北九州地区の自動車事業を営業譲渡",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/12",
      "importance": 1,
      "event": "大阪証券取引所市場第一部への株式上場を廃止",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/3",
      "importance": 1,
      "event": "宮地岳線一部（西鉄新宮〜津屋崎間）の鉄道事業廃止",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/5",
      "importance": 2,
      "event": "ICカード「nimoca」サービス開始",
      "source": "有価証券報告書"
    },
    {
      "date": "2010/10",
      "importance": 2,
      "event": "西日本車体工業を解散",
      "source": "有価証券報告書"
    },
    {
      "date": "2016/6",
      "importance": 1,
      "event": "監査等委員会設置会社に移行",
      "source": "有価証券報告書"
    },
    {
      "date": "2021/12",
      "importance": 1,
      "event": "「かしいかえん シルバニアガーデン」を閉園",
      "source": "有価証券報告書"
    },
    {
      "date": "2025/4",
      "importance": 2,
      "event": "ONE FUKUOKA BLDG. 開業",
      "source": "有価証券報告書"
    }
  ]
}