March 1, 1919, marked the beginning of the Korean Independence Movement .On this day, independence fighters announced Korea's declaration of independence from Japanese colonialism. In response, Japanese police and military forces killed and injured thousands of unarmed protestors.
August 15, Liberation Day
With the official surrender of Japan to the Allied forces on August 15, 1945, the 35-year colonization of Korea by the Japanese came to an end. August 15, 1948 also marks the establishment of the Republic of Korea.
October 3, National Foundation Day
According to legend, the god-king Tan-gun founded the Joseon Kingdom in 2333 B.C. This day fills citizens with nationalistic pride over the 4,000+ year history of Korea.