After graduating from Bosungkobo (Bosung College) in 1908, Kim Tu-bong worked closely with a linguistics professor from Bosungkobo named Ju Sigyeong, who was at that time beginning his work in the study of Hangul, for which his name would later be known, as he would dedicate his life to bring it about (the Korean script made by King Sejong during the 15th century).

After the 1919 March First Movement, he and other members of the independence club fled into China and in April 1919 set up a provisional government in Shanghai.

The December following World War II and the Japanese's surrender (15 August 1945) Kim Tu-bong and other members returned to the now-divided Korea.

Like many other communist-minded people of the time, Kim Tu-bong and other communist leaders took residence in what is now North Korea under the Soviet occupation.

Kim Il Sung became chairman of the Workers' Party after it had merged with its southern counterpart in 1949, thus becoming in name as well as in fact the country's leader.

[2] Like many others of Kim Il Sung's political opponents, he disappeared with no records to indicate whether he had been sentenced to hard labor or exile.