Guru Bangsa Tjokroaminoto Lk21 Updated [FAST]

Under Tjokroaminoto's leadership, the Sarekat Islam grew rapidly, becoming a mass organization that united various ethnic and religious groups across Indonesia. He advocated for workers' rights, education, and economic empowerment for Indonesians, while also promoting unity and resistance against colonial exploitation. Tjokroaminoto's charismatic leadership and oratory skills earned him the nickname "Guru Bangsa" (The Teacher of the Nation).