2. The newly-liberated countries felt the need to express solidarity with one another, and in May 1963, 32 African countries met in Addis Ababa to form the Organisation of Africa Unity (OAU). It was a major political force on the continent until the 1990s.
3. Since 1963, 21 more states have joined, notably South Africa, who only became part of the organisation in 1994 following the end of white minority rule.