49 “铁”的使用标志着“铁器时代”的到来。
考古发现，我国使用铁器是在3500前，这正好是甲骨文使用的时代。甲骨文未见到“铁”字，是合乎情理的。
铁 铁是形声字。金为形符；
为声符。《说文》注：“黑金也。从金，
声。”“古文铁从夷。”铁古称黑金，金属元素，符号Fe。铁为黑色金属之一，实为灰白色，氧化后呈蓝黑色。可用以炼钢，制造多种机械器具，也是生物体不可缺少之物质。铁又代指刀枪等武器。引申坚强、强硬、强暴、无情等。铁 [鐵]Ⅰ(名) ① iron (Fe) ② arms; weapon Ⅱ(形) ① hard or strong as iron ② indisputable; unalterable
为声符。《说文》注：“黑金也。从金，声。”“古文铁从夷。”铁古称黑金，金属元素，符号Fe。铁为黑色金属之一，实为灰白色，氧化后呈蓝黑色。可用以炼钢，制造多种机械器具，也是生物体不可缺少之物质。铁又代指刀枪等武器。引申坚强、强硬、强暴、无情等。铁 [鐵]Ⅰ(名) ① iron (Fe) ② arms; weapon Ⅱ(形) ① hard or strong as iron ② indisputable; unalterable《百度百科》资料：铁器时代是人类发展史中一个极为重要的时代。人们最早知道的铁是陨石中的铁，古代埃及人称之为神物。在很久以前，人们就曾用这种天然铁制作过刀刃和饰物，这是人类使用铁的最早情况。地球上的天然铁是少见的，所以铁的冶炼和铁器的制造经历了一个很长的时期。当人们在冶炼青铜的基础上逐渐掌握了冶炼铁的技术之后，铁器时代就到来了。
目前世界上出土的最古老冶炼铁器是土耳其（安纳托利亚）北部赫梯先民墓葬中出土的铜柄铁刃匕首，距今4500年（公元前2500年）。
该文物年代经检测认定为冶炼所得。但此文物所代表的年代至冶炼铁器普及之间，有整整1000年时间中东地区鲜有出土新的冶炼铁器，故其为十分珍贵的孤例。
中国目前发现的最古老冶炼铁器是甘肃省临潭县磨沟寺洼文化墓葬出土的两块铁条，距今3510年~3310年之间（公元前1510年~公元前1310年）。由于该文物2009年才出土，当时只发布了简报，完整的考古文章2014年才发表，故知名度较低。后经清华大学及牛津仪器公司检测，铁条由“块炼渗碳钢”锻打而成，是冶炼金属。同时碳14检测显示两块铁条年代分别为——3090年前、3075年前；理论误差不超过35年。但由于铁条锈蚀严重，一块铁条内部完全锈蚀，另一块铁条尚存部分残铁。所以实际误差可能较大。对此，研究人员又对墓主人骸骨及墓葬其他文物进行了碳14检测，最终认定该墓葬及铁条的年代为3510年前~3310年前之间（公元前1510年~公元前1310年）。该文物不仅打破了此前由铁刃铜钺（北京市平谷县出土）保持的“中国最古老铁器”的记录，同时也打破了由西周虢国玉柄铁剑保持的“中国最古老冶炼铁器”的记录，意义重大。
49 The use of iron marked the arrival of the Iron Age.
Archaeological discovery, China's use of iron in the 3500 before, this is precisely the era of Oracle use. Oracle did not see the "iron" word, is reasonable.
Iron iron is a phonetic word. Gold for the character; for the sound symbol. "Said the text" Note: "Black gold. From the gold, sound." "Ancient Iron from Yi." Iron ancient saying that black gold, metal elements, symbols Fe. Iron is one of the black metal, is actually white, blue-black after oxidation. Can be used to steel, manufacturing a variety of mechanical equipment, but also indispensable to the material body. Iron and generation refers to the swords and guns and other weapons. Extended strong, tough, rape, ruthless and so on. Iron (iron) I (name) ① iron (Fe) ② arms; weapon Ⅱ (shape) ① hard or strong as iron ② indisputable; unalterable
"Baidu Encyclopedia" information: Iron Age is the history of human development in a very important era. Iron is the earliest known iron in meteorites, ancient Egyptians called the fetish. Long ago, people had used this natural iron made the blade and accessories, which is the earliest case of human use of iron. Natural iron on earth is rare, so the iron smelting and manufacture of iron has gone through a very long period of time. When the people in the smelting of bronze on the basis of gradually master the iron smelting technology, the Iron Age is coming.
At present, the world's oldest unearthed smelting iron is Turkey (Anatolia) northern Hittite ancestors tomb unearthed in the copper handle iron blade dagger, 4500 years ago (2500 BC).
The cultural relics of the years identified as smelting by the detection. However, this relics represented by the era to the popularization of iron smelting between the Middle East for 1,000 years there are few new unearthed smelting iron, so it is very valuable solitary cases.
China is currently found in the oldest smelting iron is Lintan County, Gansu Province Mogao Temple Tomb culture unearthed two iron bars, dating back 3510 ~ 3310 years (between 1510 BC ~ 1310 BC). As the artifacts in 2009 was unearthed, was published only a brief, complete archaeological articles published in 2014, so the visibility is low. After testing by Tsinghua University and Oxford Instruments, the iron from the "block refining carburizing steel" forged, is the smelting of metals. At the same time carbon 14 test showed that the two iron bars were - 3090 years ago, 3075 years ago; theoretical error of not more than 35 years. However, due to severe corrosion of iron, a complete internal corrosion of iron, and the remaining pieces of iron remaining remnants of iron. So the actual error may be larger. In this regard, the researchers on the bones of the tomb and other cultural relics of the tomb of the carbon 14 test, the final finds that the tombs and iron bars for the 3510 years ago to 3310 years ago (between 1510 BC ~ 1310 BC) . The relics not only broke the previous record of "the oldest ironware in China" maintained by the iron blade copper axle (unearthed in Pinggu County, Beijing), but also broke the "China's oldest smelting ironware" maintained by the Western Zhou Dynasty Record, of great significance.
49 The use of iron marked the arrival of the Iron Age.
Archaeological discovery, China's use of iron in the 3500 before, this is precisely the era of Oracle use. Oracle did not see the "iron" word, is reasonable.
Iron iron is a phonetic word. Gold for the character; for the sound symbol. "Said the text" Note: "Black gold. From the gold, sound." "Ancient Iron from Yi." Iron ancient saying that black gold, metal elements, symbols Fe. Iron is one of the black metal, is actually white, blue-black after oxidation. Can be used to steel, manufacturing a variety of mechanical equipment, but also indispensable to the material body. Iron and generation refers to the swords and guns and other weapons. Extended strong, tough, rape, ruthless and so on. Iron (iron) I (name) ① iron (Fe) ② arms; weapon Ⅱ (shape) ① hard or strong as iron ② indisputable; unalterable
"Baidu Encyclopedia" information: Iron Age is the history of human development in a very important era. Iron is the earliest known iron in meteorites, ancient Egyptians called the fetish. Long ago, people had used this natural iron made the blade and accessories, which is the earliest case of human use of iron. Natural iron on earth is rare, so the iron smelting and manufacture of iron has gone through a very long period of time. When the people in the smelting of bronze on the basis of gradually master the iron smelting technology, the Iron Age is coming.
At present, the world's oldest unearthed smelting iron is Turkey (Anatolia) northern Hittite ancestors tomb unearthed in the copper handle iron blade dagger, 4500 years ago (2500 BC).
The cultural relics of the years identified as smelting by the detection. However, this relics represented by the era to the popularization of iron smelting between the Middle East for 1,000 years there are few new unearthed smelting iron, so it is very valuable solitary cases.
China is currently found in the oldest smelting iron is Lintan County, Gansu Province Mogao Temple Tomb culture unearthed two iron bars, dating back 3510 ~ 3310 years (between 1510 BC ~ 1310 BC). As the artifacts in 2009 was unearthed, was published only a brief, complete archaeological articles published in 2014, so the visibility is low. After testing by Tsinghua University and Oxford Instruments, the iron from the "block refining carburizing steel" forged, is the smelting of metals. At the same time carbon 14 test showed that the two iron bars were - 3090 years ago, 3075 years ago; theoretical error of not more than 35 years. However, due to severe corrosion of iron, a complete internal corrosion of iron, and the remaining pieces of iron remaining remnants of iron. So the actual error may be larger. In this regard, the researchers on the bones of the tomb and other cultural relics of the tomb of the carbon 14 test, the final finds that the tombs and iron bars for the 3510 years ago to 3310 years ago (between 1510 BC ~ 1310 BC) . The relics not only broke the previous record of "the oldest ironware in China" maintained by the iron blade copper axle (unearthed in Pinggu County, Beijing), but also broke the "China's oldest smelting ironware" maintained by the Western Zhou Dynasty Record, of great significance.
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