In 98 BC Rome expelled all non-Roman citizens (except slaves). It was a time in Rome when the non-Romans were not allowed to stay in the city unless they were slaves. Rome was a place of religion and history no foreign outsiders were allowed.
Well Eastern Europe is still a mess after USSR cause and all of the wars and money spent in wars
I can try. What is your question??
The answer you are looking for is
Democratic Republic of Congo: which gained its independence in 1960
Ghana: which gained its independence 1957
Nigeria: which gained its independence 1960
Hope this helped :D