Original sentence: Since 1945, this proportion has grown, as Britains's Empire and Commonwealth were used as a source of labour recruitment for her post war economic expansion.There has also been a very small Black and Asian presence in England since at least the 16th century
Edited sentence: There has also been a very small Black and Asian presence in England since at least the 16th century.. In recent times, these figures have grown, due to the liquidation of the British Empire and the mass immigration of the populations of the former colonies