The term "celadon" was used for pottery of a pale grayish - bluish, even earthy, shade. This designation can be said to have been introduced by collectors. The homeland of the real celadon is China of the second half of the 10th century . The rich court nobility instantly fell in love with the nobility of the products, the color of which was so reminiscent of jade and on which there were "cracks". Celadon is a kind of ceramic in cracks. The history of the Great Silk Road is connected with these products. Gradually, the products penetrated into Korea. History says that in the 16th century. rich Japanese were seriously interested in luxury goods, not ignoring celadon products, there were many similar items imported by merchants. Toyotomi Hideyoshi (the Japanese military figure who united Japan), after two failed attempts to conquer Korea, captivated ceramists, among whom, so they say, there were masters who owned the art of creating celadon ware. There was a good step in this, a "Boom" and a rapid growth in the production of porcelain products on the Kyushu Island began.