Analogy of Ironware Production Technology in the Southeast Region of the Korean Peninsula from the Blacksmith's Facilities in Northern Kyushu Region in the Yayoi Period

The exclusive ironware culture represented as Wood chamber and Flat iron axe was established in the southeastern region of the Korean peninsula after the first century A.D. However, the investigation accomplishment of the contemporary ironware production remains having been identified so far is not comparable to the good quality of the ironware having been excavated from the remains. This manuscript checks the ironware production relics and relevant artifacts in the north Kyushu region in the Yayoi period to overcome the absence of ironware production remains in the southeastern region in the first to three centuries A.D. to analogize the contemporary with ironware production technology in the southeastern region of the Korean peninsula. The ironware production in the north Kyushu region in the Yayoi period changed over the two epochs after ironware production technology was introduced due to the effect of the southeastern region of the Korean peninsula. According to the previous study, the type 6 with advanced underground facilities within a dwelling and the type 7 as an outdoor blacksmith‘s facility emerge in the north Kyushu region in the latter part of the Yayoi period show the unique characteristics of the north Kyushu region. However, type 6 blacksmith’s facility is related to the type 4 blacksmith’s facility which is an outdoor facility shown in Nuk-do in the southeastern region and is possibly the case applied and changed to the inside of a dwelling in the north Kyushu region. Moreover, the type 7 blacksmith’s facility has ground type walls, and even technology reflecting refining and smith is presented. However, a blacksmith’s facility similar to the type 7 may also exist in the southeastern region in terms that a blacksmith’s facility already precedes as an outdoor facility in the southeastern region, that there is a similarity to a blacksmith’s facility within a shell midden settlement in insular and coastal regions, and that they type 7 is found only from Iki Island located in the entrance of the north Kyushu region. A blacksmith’s facility within a shell mound settlement in the southeastern region shows similarity to the type 7. Especially, the level of iron production technology in the southeastern region after the first century A.D. can be tracked through the relevant relics and artifacts presenting the high-temperature operation found in Busan Nakmin-dong Shell mound. Moreover, the production and the distribution structure were built on the basis of processes through the salient differences of tuyeres with in shell mound settlements. The ironware and iron materials produced in the southeastern insular and coastal regions of the Korean peninsula had been supplied to the north Kyushu region through the ironware production and distribution structure in the southeastern region until the introduction of ironware production technology in the Japanese Islands.