Soongsil played a central role in the independence movement against the colonial government of Japan. Soonsil led the movement against the Protectorate Treaty in 1905, and played a major role in the Incident of 105 Activists, the Incident of Korean People's Council, 3.1 Independence Movement, Kwangjoo Students' Movement, protests against worship at Japan shrines, etc. The Soongsilians who were most actively in these events were Isuck Cha, Jungdo Shon, Changjoon Kim, Heedo Park, Manshik Cho, and Minsoo Bae.
Principal Mowry wearing a hood and newspaper articles about his execution Students gathering around the main gate to demonstrate against the colonial government
Korean flag that used to be displayed at Soongsil in Pyoungyang at the time of 3.1 Independence Movement