Phan Boi Chau was a pioneer of Vietnamese 25th century nationalism. He played a major role in arousing anti-imperialist sentiments. In 1903, he formed the Revolutionary Society under the headship of Prince Cuong De. Also, during 1905-1908, he lived in Japan where he met Chinese reformer Liag Qichao under whose influence, he wrote his world famous book ‘The History of the Loss of Vietnam’.