A letter dating from 1591 mentions two Vietnamese merchants/agents/diplomats named Chen Liangshan (陳梁山) and Longyan (隆厳) arrived in Japan and offered to the "King of Japan" (addressed as 日本国国王) Vietnamese exotic goods. In 1609, an official trading ship owned by Suminokura Soan was shipwrecked on its return trip, along with 105 crew members, off the shores of the straits of Dan Nhai. Taking pity on these merchants who were suffering far from home, the king of Annam had ordered the Marquis de Van Ly (Văn Lý hầu) Tran, along with the duke of Thu county (Thư quận công) and the Marquis de Quang Phu (Quảng Phú hầu), to distribute rations to the victims. The marquises then appealed to the king for food, clothing, and a large ship for the victims. In the same year, the Japanese government had granted three permits for merchant ships to sail to Cochinchina in central Vietnam. This letter thus serves as proof that many merchant ships had sailed to Vietnam under the government-sanctioned maritime trade system. It also provides evidence of the friendly relations between the two nations during that period. , Vietnamese temple in
Kanagawa Large numbers of Vietnamese students began to choose Japan as a destination in the early 20th century, spurred by the exiled prince
Cường Để and the
Đông Du Movement (literally, "Travel East movement" or "Eastern Travel movement") he and
Phan Bội Châu pioneered. By 1908, 200 Vietnamese students had gone to study at Japanese universities. However, the community of Vietnamese people in Japan is dominated by
Vietnam War refugees and their families, who compose about 70% of the total population. The policy of accepting foreign migrants marked a significant break from Japan's post-
World War II orientation towards promoting and maintaining racial homogeneity. Most of these migrants settled in
Kanagawa and
Hyōgo prefectures, the locations of the initial resettlement centres. As they moved out of the resettlement centres, they often gravitated to
Zainichi Korean-dominated neighbourhoods; however, they feel little sense of community with Zainichi Koreans, seeing them not as fellow ethnic minorities but as part of the mainstream. During the
COVID-19 pandemic, travel between Japan and Vietnam was restricted, temporarily halting migration. ==Integration==