Final answer:
The first Sub-Saharan African country to gain independence after WWII was Ghana in 1957, influenced by nationalist movements and the leadership of key figures like Kwame Nkrumah.
Step-by-step explanation:
The first Sub-Saharan African country to gain independence after World War II was Ghana in the year 1957. Following a pattern of transition from colonies to independent nations often marred by conflict and civil war, Ghana set a precedent for decolonization movements across the continent.
While African colonies had been crucial for European powers for resources and markets, the post-war era saw these colonies fighting for independence, with nationalism being a powerful force. In Ghana, significant political figures like Kwame Nkrumah played key roles in the push for self-governance. Through political parties and actions such as general strikes, the nation of Ghana, formerly known as Gold Coast, negotiated its release from colonial rule, with Nkrumah eventually becoming its prime minister and leading the country to independence.