You can read about the event and all later conferences on wikipedia.

“The ‘All-African Peoples Conference’ (AAPC) was partly a corollary and partly a different perspective to the modern Africa states represented by the Conference of Heads of independent Africa States. The ‘All-Africa Peoples Conference’ was conceived to include social groups, including ethnic communities and anti-colonial political parties and African organizations such as Labor Unions and other significant associations in the late 1950s and early 1960s both in Africa and the Diaspora such as Europe, North America and South America.

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The first conference was preceded by a Preparatory Committee composed of representatives from the eight independent African states—other than South Africa. (They were Ethiopia, Ghana, Guinea, Liberia, Libya, Morocco, Tunisia, and the United Arab Republic.) The conference itself was attended by delegates from 28 African countries and colonies. The number of delegates was more than 300, and the conference claimed that they represented more than 200 million people from all parts of Africa. Tom Mboya, General Secretary of the Kenya Federation of Labour, was elected chairman.

One important discussion was over the legitimacy and desirability of using violence against the colonial powers. It was agreed that violence would be necessary in some cases. Concerning the struggle in Algeria, full support was given to the recently proclaimed Provisional Republican Government (Gouvernement Provisoire de la République Algérienne—GPRA). On the Cameroon, the Conference supported the fight of the UPC maquis, demanding full amnesty and UN-sponsored elections. The Conference considered unity and solidarity to be key strategies in the fight against colonialism and economic domination after colonialism; it called for the establishment of Africa-wide organisations, including trade unions youth groups, and a Bureau of Liberatory Movements. It was at this meeting that the decision was made to establish a permanent secretariat at Accra. The first secretary-general was George Padmore, then living in Ghana. The following year, he died and was replaced by Guinea’s Resident Minister in Ghana, Abdoulaye Diallo.”