{"id":48004,"date":"2026-01-31T06:24:24","date_gmt":"2026-01-30T21:24:24","guid":{"rendered":"https:\/\/kochihen.replan.ne.jp\/?p=48004"},"modified":"2026-01-31T06:24:24","modified_gmt":"2026-01-30T21:24:24","slug":"%e3%80%90%e6%88%a6%e5%9b%bd%e6%9c%ab%e6%9c%9f%e3%81%ae%e5%9c%9f%e6%9c%a8%e6%88%a6%e4%ba%89%e3%81%a8%e5%ae%b6%e7%b3%bb%e3%80%8c%e5%8e%9f%e6%b0%8f%e3%80%8d%e3%81%ae%e3%83%aa%e3%83%b3%e3%82%af%e3%80%91","status":"publish","type":"post","link":"http:\/\/kochihen.replan.ne.jp\/?p=48004","title":{"rendered":"\u3010\u6226\u56fd\u672b\u671f\u306e\u571f\u6728\u6226\u4e89\u3068\u5bb6\u7cfb\u300c\u539f\u6c0f\u300d\u306e\u30ea\u30f3\u30af\u3011"},"content":{"rendered":"<p><a href=\"http:\/\/kochihen.replan.ne.jp\/blog2\/wp-content\/uploads\/2026\/01\/4040-31-1.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/kochihen.replan.ne.jp\/blog2\/wp-content\/uploads\/2026\/01\/4040-31-1.jpg\" alt=\"\" width=\"525\" height=\"390\" class=\"alignnone size-full wp-image-48005\" 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\/>\n\u3000\u81ea\u5206\u81ea\u8eab\u306e\u3053\u3068\u306f\u3068\u3082\u304b\u304f\u3068\u3057\u3066\u3001\u3053\u306e\u3088\u3046\u306a\u539f\u6c0f\u306eDNA\u7684\u5171\u901a\u6027\u304c\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u8840\u8108\u7684\u3064\u306a\u304c\u308a\u306b\u3082\u7acb\u3061\u81f3\u308b\u306e\u304b\u3082\u77e5\u308c\u306a\u3044\u3002<br \/>\n\u3000\u300c\u7dda\u8def\u306f\u7d9a\u304f\u3088\u3001\u3069\u3053\u307e\u3067\u3082\u300d\u3067\u3042\u308a\u307e\u3059\u3002\u3000\u8ff7\u5bae\u304b\u306a\u3041\u30fb\u30fb\u30fb\u3002<\/p>\n<p>\u25cf\u304a\u77e5\u3089\u305b<br \/>\n\u62d9\u66f8\u300c\u4f5c\u5bb6\u3068\u4f4f\u7a7a\u9593\u300d\u5e7b\u51ac\u820e\u304b\u3089\u96fb\u5b50\u66f8\u7c4d\u3067\u767a\u520a<br \/>\n\u304a\u6c42\u3081\u306fAmazon\u3067\u3002<br \/>\n<a href=\"https:\/\/amzn.asia\/d\/eUiv9yO\" rel=\"noopener\" target=\"_blank\">https:\/\/amzn.asia\/d\/eUiv9yO<\/a><br \/>\n<a href=\"http:\/\/kochihen.replan.ne.jp\/blog2\/wp-content\/uploads\/2025\/05\/4023-14-2.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/kochihen.replan.ne.jp\/blog2\/wp-content\/uploads\/2025\/05\/4023-14-2.jpg\" alt=\"\" width=\"300\" height=\"482\" class=\"alignnone size-full wp-image-46472\" srcset=\"http:\/\/kochihen.replan.ne.jp\/blog2\/wp-content\/uploads\/2025\/05\/4023-14-2.jpg 300w, http:\/\/kochihen.replan.ne.jp\/blog2\/wp-content\/uploads\/2025\/05\/4023-14-2-187x300.jpg 187w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>English version\u2b07<\/p>\n<p>\u3010The Link Between Civil Engineering Warfare in the Late Sengoku Period and the Hara Clan\u3011<br \/>\nI myself have lived in the world of expression, founding magazines and such. Yet in my family history, I somehow end up closely related to the \u201ccivil engineering improvement\u201d bloodline. I&#8217;m speechless (lol)&#8230;<\/p>\n<p>\u3000The \u201cFour Hundred Years of Life&#8217;s Resume\u201d Series.<br \/>\nRecently, we delved into the samurai clan, the Hara family, who served as senior retainers of the Hiroshima domain. This research led to the discovery of records indicating their association with the Asano clan coincided with the Asano&#8217;s period of control over Kai Province. This naturally brings to light the Hara family&#8217;s role as a powerful military commander under the Takeda clan. The narrative suggests that retainers of the Takeda chose the Asano clan as their new patron.<br \/>\nDuring my research, I also found descriptions stating that this branch of the K\u014dsh\u016b Hara clan (Hara Masatane) was known as a samurai family excelling in \u201cobserving and understanding battlefield terrain.\u201d He is also named among the prominent generals of the Takeda Twenty-Four Generals.<br \/>\nFurthermore, while exploring the reality of the \u201ccivil engineering warfare\u201d revolution in late Sengoku warfare, information surfaced about a civil engineering specialist named \u201cHara Munehira\u201d (Hara clan) who was active primarily in Hizen Province.<br \/>\nThis figure played a decisive role in Nagasaki&#8217;s urban planning and civil engineering technology during the early Edo period, becoming a pioneer of Nagasaki&#8217;s city planning. His originality lay in possessing a unique surveying and civil engineering technique known as the \u201cHara School (S\u014dhaku-ry\u016b)\u201d. He possessed advanced mathematical and technical expertise in measuring elevation differences and calculating areas, essential for castle construction and new land development (reclamation). His expertise is reflected in the reclamation and revetment works for the town of Nagasaki built on the tip of a cape.<br \/>\n&#8230;Indeed, the \u201cHara\u201d surname strongly suggests such elements of talent. Traces of river management and civil engineering improvements from when my family relocated from Kishu to Hiroshima, plus connections to the Takehara salt fields&#8230; Of course, this clearly can&#8217;t be generalized to the Hara surname as a whole, but somehow I feel a strong \u201cconnection\u201d in these areas.<br \/>\nBut deep down, a voice echoes: \u201cI&#8217;ve spent my life creating magazines and living in the world of visual expression&#8230; why civil engineering of all things?\u201d It&#8217;s hard to agree with that inner voice (laughs). Well, perhaps the work of \u201cunearthing this family history and delving into its meaning within that era\u201d shares a certain \u201chomogeneity\u201d in its own way.<br \/>\nSetting aside my own case, this kind of shared DNA among the Haras might, in some instances, even lead to bloodline connections.<br \/>\n\u201cThe tracks go on and on, forever.\u201d Is this a labyrinth&#8230;?<\/p>\n<p>\u25cfNotice<br \/>\nMy book \u201cWriters and Living Spaces\u201d published as an e-book by Gentosha<br \/>\nAvailable on Amazon.<br \/>\n\u3000<br \/>\n\u3000<br \/>\n\u3000<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3000\u300c\u56db\u767e\u5e74\u9593\u306e\u3044\u306e\u3061\u306e\u5c65\u6b74\u66f8\u300d\u30b7\u30ea\u30fc\u30ba\u3002 \u3000\u5148\u822c\u3001\u5e83\u5cf6\u85e9\u306e\u91cd\u81e3\u3068\u3057\u3066\u306e\u6b66\u5bb6\u30fb\u539f\u6c0f\u306b\u3064\u3044\u3066\u6398\u308a\u4e0b\u3052\u3066\u898b\u307e\u3057\u305f\u304c\u3001\u6d45\u91ce\u6c0f\u3068\u306e\u95a2\u308f\u308a\u306f\u6d45\u91ce\u6c0f\u306e\u7532\u6590\u56fd\u652f\u914d\u6642\u671f\u306b\u76f8\u5f53\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u8a18\u9332\u306e\u767a\u6398\u3078\u81f3\u3063\u305f\u3002\u305d\u3046\u3059\u308b\u3068\u81ea\u7136\u3068\u6b66\u7530\u6c0f\u306e\u6709\u529b\u8ecd [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"\u3010\u6226\u56fd\u672b\u671f\u306e\u571f\u6728\u6226\u4e89\u3068\u5bb6\u7cfb\u300c\u539f\u6c0f\u300d\u306e\u30ea\u30f3\u30af\u3011\r\n\u308f\u305f\u3057\u81ea\u8eab\u306f\u96d1\u8a8c\u5275\u520a\u306a\u3069\u8868\u73fe\u7cfb\u4e16\u754c\u3067\u751f\u304d\u3066\u304d\u305f\u3002\u306a\u306e\u306b\u5bb6\u7cfb\u53f2\u3067\u306f\u306a\u305c\u304b\u300c\u571f\u6728\u6539\u826f\u300d\u7cfb\u306e\u8840\u6d41\u306b\u8fd1\u7e01\u3057\u3066\u304f\u308b\u3002\u7d76\u53e5\u6c17\u5473\uff08\u7b11\uff09\u30fb\u30fb\u30fb","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-48004","post","type-post","status-publish","format-standard","hentry","category-1"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9MKWA-cug","_links":{"self":[{"href":"http:\/\/kochihen.replan.ne.jp\/index.php?rest_route=\/wp\/v2\/posts\/48004","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/kochihen.replan.ne.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/kochihen.replan.ne.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/kochihen.replan.ne.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/kochihen.replan.ne.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=48004"}],"version-history":[{"count":1,"href":"http:\/\/kochihen.replan.ne.jp\/index.php?rest_route=\/wp\/v2\/posts\/48004\/revisions"}],"predecessor-version":[{"id":48006,"href":"http:\/\/kochihen.replan.ne.jp\/index.php?rest_route=\/wp\/v2\/posts\/48004\/revisions\/48006"}],"wp:attachment":[{"href":"http:\/\/kochihen.replan.ne.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=48004"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/kochihen.replan.ne.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=48004"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/kochihen.replan.ne.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=48004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}