The science of the excavation by Kosai of Fine Arts, found skeleton bones, pottery, silk and scrap the Ban Chiang Udon Thani province which is expected to be up to 3 years,000 years before the discovery of additional evidence at Tambon Khok Phanom province Prachin Buri, confirm that there are age 5,000 years ago may be the starting point of high culture and to distribute it to the China, and other parts of Asia, Cuba, Mr. Don, the copper ax to dig it in the house, birds, painted in Khon Kaen province confirmed the use of bronze in the stone age.500-1,000 years ago
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