Where was the black population of Europe concentrated since the time of the Roman Republic?

Explanation:

Demographically, the Roman Empire was a typical premodern state. It had high infant mortality,  After population decline following the disintegration of the western half of the Roman state in the fifth and sixth The late period of the Roman Republic provides a small exception to this general rule: serial statistics for Roman.

i think u are supposed to write a long-essay answers to the long-essay questions

a countries leader should be motivated by the common good of the country.