南蛮貿易
Due to the so-called Nanban trade in the 16th-17th century, fragments of Vietnamese ceramic were found in a northern part of Kyūshū island. Among them was a wooden plate with character showing the date 1330 on it. Whether the Japanese went to Vietnam or Vietnamese traders came to Japan or if it all went through China is not quite clear. Vietnamese history records showed that when Lord Nguyễn Hoàng founded Hội An port at the beginning of the 17th century, hundreds of Japanese residents were already there.