Walter Sisulu was a prominent South African anti-apartheid activist and a key figure in the African National Congress (ANC). Born on May 18, 1912, he played a crucial role in the struggle against racial segregation and injustice in South Africa. Sisulu was instrumental in organizing protests and advocating for the rights of black South Africans. In addition to his activism, Sisulu was a close associate of Nelson Mandela and helped to mentor him. He was imprisoned for his political activities, spending 26 years in jail. After his release, Sisulu continued to work towards a democratic South Africa until his passing on May 5, 2003.