{"id":38886,"date":"2022-12-05T05:53:36","date_gmt":"2022-12-04T20:53:36","guid":{"rendered":"http:\/\/kochihen.replan.ne.jp\/?p=38886"},"modified":"2022-12-06T20:34:03","modified_gmt":"2022-12-06T11:34:03","slug":"%e3%80%90%e8%be%b2%e3%81%ae%e4%b8%ad%e6%a0%b8%e7%b4%a0%e6%9d%90%ef%bc%9d%e9%89%84%e3%81%af%e5%9b%bd%e5%ae%b6%e3%81%aa%e3%82%8a%e3%81%8b%ef%bc%9f-%e6%97%a5%e6%9c%ac%e5%88%97%e5%b3%b637000%e5%b9%b4","status":"publish","type":"post","link":"https:\/\/kochihen.replan.ne.jp\/?p=38886","title":{"rendered":"\u3010\u8fb2\u306e\u4e2d\u6838\u7d20\u6750\uff1d\u9244\u306f\u56fd\u5bb6\u306a\u308a\u304b\uff1f \u65e5\u672c\u5217\u5cf637,000\u5e74\u53f2-35\u3011"},"content":{"rendered":"

\"\"<\/a>
\n\"\"<\/a>
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English version\u2b07<\/p>\n

Iron, the Core Material of Agriculture: A Nation? The 37,000-Year History of the Japanese Archipelago – 35
\nWhy did Japan in the Tenchi period fight the reckless Battle of Hakuchon River? The situation of acquiring “iron” resources in a desperate situation. …<\/p>\n

The following is an abstract from “The Story of ‘Iron’ Across the Sea”<\/a> in Unnan, Shimane Prefecture.
\n\u301cThe first time iron was made in the world is believed to have been in Western Asia between 3,800 and 4,000 years ago.
\nIn China, on the other hand, iron was first produced around 3,400 years ago. Japan is still in the latter half of the Jomon Period.
\nIn China, too, iron was first made from meteoric iron (iron meteorites) that fell from outer space.
\nAt this time, bronze casting technology had already been developed in China, and bronze vessels were the main type of metalware.
\nIron was very precious. Eventually, China became the first country in the world to produce pig iron, and this pig iron was then used in casting molds.
\nThis pig iron was poured into molds to produce cast ironware.
\nPig iron is extremely hard due to the high carbon content in the iron, but it is also brittle upon impact.
\nIt was not suitable for use as a cutting tool or other useful tool. However, in China, a technology was developed to reduce the amount of carbon in the iron.
\nThe technique to reduce the amount of carbon in iron was developed in China, and iron with a high tenacity came to be used for cast-iron blades.
\nIn the mid-Yayoi period in Japan, iron axe shards made of iron were transported to northern Kyushu Japan and reused.
\nThey were reused. The Yayoi, who cultivated the mountains and fields with stone tools, were amazed at the power of the sharpness of iron tools.
\nThe iron products they brought with them were highly prized.
\nEventually, Chinese iron manufacturing technology spread to the northern part of the Korean Peninsula. Around the 3rd century, iron products produced in the southern part of the Korean peninsula were introduced to the Yayoi people.
\nIron produced in the southern part of the Korean Peninsula was imported to Japan. Late Yayoi Period to early Kofun Period. \u301cFrom the late Yayoi Period to the early Kofun Period<\/p>\n

It is the very industrial and technological revolution that is also common in the modern world.
\nBronze technology had already been introduced, and bronze bells and other objects had been introduced as prestige materials, but the amazing performance of iron was changing the world at a stroke.
\nWe can imagine that the amazing performance of iron changed the world at once.
\nThe introduction of iron tools into Yayoi society made them the best tools for land development and agriculture.
\nWhether used as cultivation tools or as the cutting edge of an axe, iron tools far surpassed the efficiency and workmanship of previous tools.
\nIt is not difficult to imagine that the iron tools were far more efficient and effective than the conventional tools, shortening labor time and improving accuracy.
\nIt was probably also used as a “weapon” in warfare.
\nIn a battle, a group with iron would have been overwhelmingly strong.
\nIt was natural that they would fight to acquire iron.
\nThe desire for iron tools, which was almost like a religious belief, rose at the base of society.
\nDuring the period of the birth of the Japanese state, strong international relations with the Korean Peninsula states were fundamental.
\nThe production and introduction of ironware was a decisive factor in Japan’s power structure in its infancy.
\nThe production and introduction of ironware was a critical factor in the development of Japan’s power structure.
\nThe motivation for the Japanese to eventually plunge into the Battle of Hakuchonjiang, a world war in East Asia, was directly related to this.
\nThe reason why the Japanese were eventually driven into the East Asian World War, the Battle of the White River, may be because of the direct link between this war and the survival of the social economy.<\/p>\n

After the defeat at the Hakuchon River, domestic production of iron finally became possible, and the Japanese archipelago’s society was able to survive in the East Asian world.
\nJapanese society could somewhat break away from its strong relationship with the East Asian world.
\nEconomic independence has always been a decisive factor for national stability.
\nFrom the Yayoi period to the period of state formation, this kind of impasse would have existed in Japanese society
\nIt is becoming visible that this kind of desperate situation would have existed around iron in Japanese society from the Yayoi period to the period of state formation.<\/p>\n","protected":false},"excerpt":{"rendered":"

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