Bantu or some of the people that traded to them such as Swahii,Omani, ect who may have spread the new language they learned from speaking to them to trade.
The weakness was mostly seen in Albania. It broke its ties with the Soviet Union Early and there was nothing that the Soviets could do about it. The leader decided to de-Stalinize the country and remove all influence of Russian power, punishing anyone who wanted to stay with Russians.
Although plans for a Constitutional convention we’re already underway, the up rising in Massachusetts lead to further calls for a stronger national government and influence the ensuing debate in Philadelphia that led to the drafting of the US consideration in the summer of 1787.