Original sentence: He became Prime Minister in 1952 and he retained the position when Ghana declared independence from Britain in 1957.Kwame Nkrumah was born on 21 September 1912 in Nkroful, Gold Coast (now known as Ghana)
Edited sentence: He became Prime Minister in 1952 and retained this position when Ghana declared independence from Britain in 1957.Kwame Nkrumah was born on 21 September 1912 in Nkroful, Gold Coast (later known as Ghana) to a poor and illiterate family