what is the most remarkable achievement of the political party you mentioned before?
A society in which people are intellectually, socially, economically and politically empowered.
African National Congress
society in which people are intellectually, socially, economically and politically empowered. 
who become the first president of south africa in 1994 Nelson Rolihlahla Mandela which political movement was he associated with? African National Congress (ANC) party was he ever imprisoned for his political views? Yes, he was repeatedly arrested for seditious activities and was unsuccessfully prosecuted in the 1956 Treason Trial. when was he finally released? 1990 who's he married to? Evelyn Mase
wiki:1562340
African National Congress [SEP] Ideology
The ANC deems itself a force of national liberation in the post-apartheid era; it officially defines its agenda as the "National Democratic Revolution". The ANC is a member of the Socialist International. It also sets forth the redressing of socio-economic differences stemming from colonial- and apartheid-era policies as a central focus of ANC policy. The National Democratic Revolution (NDR) is described as a process through which the National Democratic Society (NDS) is achieved; a society in which people are intellectually, socially, economically and politically empowered. The drivers of the NDR are also called the motive forces and are defined as the elements within society that gain from the success of the NDR.