Nelson Mandela was a prominent South African anti-apartheid revolutionary and political leader who served as President of South Africa from 1994 to 1999. He was the first black head of state in the country and played a crucial role in dismantling the apartheid regime, advocating for peace and reconciliation. Imprisoned for 27 years for his activism, Mandela became a global symbol of resistance against oppression. His leadership and dedication to equality earned him the Nobel Peace Prize in 1993, and he is celebrated worldwide for his efforts to promote human rights and social justice.