Enumerate the people living in Rome?

The Romans (Latin: Rōmānī, Classical Greek: Rhōmaîoi) were a cultural group, variously referred to as an ethnicity or a nationality, that in classical antiquity, from the 2nd century BC to the 5th century AD, came to rule large parts of Europe, the Near East and North Africa through conquests made during the Roman Republic and the later Roman Empire. The Romans themselves did not see being "Roman" as something based on shared language or inherited ethnicity,but saw it as something based on being part of the same larger religious or political community and sharing common customs, values, morals and ways of life

d. it adversely affected american productivity