Apartheid in South Africa: Nelson Mandela is jailed. He would not be released until 1990.

Nelson Rolihlahla Mandela (; Xhosa: [xolaa mandla]; 18 July 1918 5 December 2013) was a South African anti-apartheid activist who served as the first president of South Africa from 1994 to 1999. He was the country's first black head of state and the first elected in a fully representative democratic election. His government focused on dismantling the legacy of apartheid by fostering racial reconciliation. Ideologically an African nationalist and socialist, he served as the president of the African National Congress (ANC) party from 1991 to 1997.

A Xhosa, Mandela was born into the Thembu royal family in Mvezo, Union of South Africa. He studied law at the University of Fort Hare and the University of Witwatersrand before working as a lawyer in Johannesburg. There he became involved in anti-colonial and African nationalist politics, joining the ANC in 1943 and co-founding its Youth League in 1944. After the National Party's white-only government established apartheid, a system of racial segregation that privileged whites, Mandela and the ANC committed themselves to its overthrow. He was appointed president of the ANC's Transvaal branch, rising to prominence for his involvement in the 1952 Defiance Campaign and the 1955 Congress of the People. He was repeatedly arrested for seditious activities and was unsuccessfully prosecuted in the 1956 Treason Trial. Influenced by Marxism, he secretly joined the banned South African Communist Party (SACP). Although initially committed to non-violent protest, in association with the SACP he co-founded the militant uMkhonto we Sizwe in 1961 and led a sabotage campaign against the government. He was arrested and imprisoned in 1962, and, following the Rivonia Trial, was sentenced to life imprisonment for conspiring to overthrow the state.

Mandela served 27 years in prison, split between Robben Island, Pollsmoor Prison and Victor Verster Prison. Amid growing domestic and international pressure and fears of racial civil war, President F. W. de Klerk released him in 1990. Mandela and de Klerk led efforts to negotiate an end to apartheid, which resulted in the 1994 multiracial general election in which Mandela led the ANC to victory and became president. Leading a broad coalition government which promulgated a new constitution, Mandela emphasised reconciliation between the country's racial groups and created the Truth and Reconciliation Commission to investigate past human rights abuses. Economically, his administration retained its predecessor's liberal framework despite his own socialist beliefs, also introducing measures to encourage land reform, combat poverty and expand healthcare services. Internationally, Mandela acted as mediator in the Pan Am Flight 103 bombing trial and served as secretary-general of the Non-Aligned Movement from 1998 to 1999. He declined a second presidential term and was succeeded by his deputy, Thabo Mbeki. Mandela became an elder statesman and focused on combating poverty and HIV/AIDS through the charitable Nelson Mandela Foundation.

Mandela was a controversial figure for much of his life. Although critics on the right denounced him as a communist terrorist and those on the far left deemed him too eager to negotiate and reconcile with apartheid's supporters, he gained international acclaim for his activism. Globally regarded as an icon of democracy and social justice, he received more than 250 honours, including the Nobel Peace Prize. He is held in deep respect within South Africa, where he is often referred to by his Thembu clan name, Madiba, and described as the "Father of the Nation".

Apartheid (, especially South African English: , Afrikaans: [aˈpartɦɛit]; transl. "separateness", lit. "aparthood") was a system of institutionalised racial segregation that existed in South Africa and South West Africa (now Namibia) from 1948 until the early 1990s. Apartheid was characterized by an authoritarian political culture based on baasskap (boss-hood or boss-ship), which ensured that South Africa was dominated politically, socially, and economically by the nation's minority white population. According to this system of social stratification, white citizens had the highest status, followed by Indians and Coloureds, then black Africans. The economic legacy and social effects of apartheid continue to the present day.Broadly speaking, apartheid was delineated into petty apartheid, which entailed the segregation of public facilities and social events, and grand apartheid, which dictated housing and employment opportunities by race. The first apartheid law was the Prohibition of Mixed Marriages Act, 1949, followed closely by the Immorality Amendment Act of 1950, which made it illegal for most South African citizens to marry or pursue sexual relationships across racial lines. The Population Registration Act, 1950 classified all South Africans into one of four racial groups based on appearance, known ancestry, socioeconomic status, and cultural lifestyle: "Black", "White", "Coloured", and "Indian", the last two of which included several sub-classifications. Places of residence were determined by racial classification. Between 1960 and 1983, 3.5 million black Africans were removed from their homes and forced into segregated neighbourhoods as a result of apartheid legislation, in some of the largest mass evictions in modern history. Most of these targeted removals were intended to restrict the black population to ten designated "tribal homelands", also known as bantustans, four of which became nominally independent states. The government announced that relocated persons would lose their South African citizenship as they were absorbed into the bantustans.Apartheid sparked significant international and domestic opposition, resulting in some of the most influential global social movements of the twentieth century. It was the target of frequent condemnation in the United Nations and brought about an extensive arms and trade embargo on South Africa. During the 1970s and 1980s, internal resistance to apartheid became increasingly militant, prompting brutal crackdowns by the National Party government and protracted sectarian violence that left thousands dead or in detention. Some reforms of the apartheid system were undertaken, including allowing for Indian and Coloured political representation in parliament, but these measures failed to appease most activist groups.Between 1987 and 1993, the National Party entered into bilateral negotiations with the African National Congress (ANC), the leading anti-apartheid political movement, for ending segregation and introducing majority rule. In 1990, prominent ANC figures such as Nelson Mandela were released from prison. Apartheid legislation was repealed on 17 June 1991, leading to multiracial elections in April 1994.