《墨子·耕柱篇》云:“昔者夏后开,使蜚廉折金于山川,而陶铸于昆吾。……鼎成,三(《玉海》卷88等引作”四“)足而方。……九鼎既成,迁于三国。夏后氏失之,殷人受之;殷人失之,周人受之。夏后殷周之相受也,数百岁矣。”经过数千年的岁月流逝,四足而方的九鼎目前虽然难以考证,但是作为王室重器的青铜大方鼎已经出土面世。从70年代至90年代,在河南郑州商城周围陆续出土了三批共8件商代前期铜方鼎,其 “Mozi Pillage articles” cloud: “summer who opened after the summer, so that the gratuitous discount in the mountains and rivers, and pottery in Kun Wu ... ... Dingcheng, three (” Yuhai “volume 88 and other quotations Four ”) foot and square. ...... Jiuding completed, moved to the Three Kingdoms. Xia Houshi lost, Yin people suffer; Yin people lost, weeks people suffer. Carry on. “” After thousands of years of passage of time, four-legged and the side of the Jiuding, although difficult to verify the current, but as a royal heavy bronze generous tripod has been unearthed available. From the 70s to the 90s, three batches of copper Fang Ding of Shang Dynasty