Names of Vietnam
The use of "Vietnam" was revived in modern times by nationalists including Phan Bội Châu, whose book Việt Nam vong quốc sử (History of the Loss of Vietnam) was published in 1906. Chau also founded the Việt Nam Quang Phục Hội (Vietnam Restoration League) in 1912. However, the general public continued to use Annam and the name "Vietnam" remained virtually unknown until the Yên Bái mutiny of 1930, organized by the Việt Nam Quốc Dân Đảng (Vietnamese Nationalist Party). By the early 1940s, the use of "Việt Nam" was widespread. It appeared in the name of Ho Chi Minh's Viet Nam Doc Lap Dong Minh Hoi (Viet Minh), founded 1941, and was even used by the governor of French Indochina in 1942. The name "Vietnam" has been official since 1945. It was adopted in June by Bảo Đại's imperial government in Huế, and in September by Ho's rival communist government in Hanoi.