During the ancient Roman period, the Roman census was conducted after a definite interval of time like it is done today. At the time of the census, only the men residing in the Roman Empire were taken into consideration for the purposes of counting the population. The men would then tell about their families like wives, children, assets or any other property.
The following is the Roman census of the Roman Empire before its division
Before 218- 202 BC
4,063,000(including men and women)
The Roman Empire was in 285 AD was divided into two parts namely, the
Western Empire and the Eastern Empire. Census of the Western Roman
Empire and Eastern Roman Empire was as follows-
Western Roman Empire-
Gaul and Rhineland
Sicily, Corsica, and Sardinia
Africa, Numidia, Mauretania
Rhaetia, Noricum, Pannonia, Dalmatia
The total population of the Western Roman Empire was 22,000,000.
Eastern Roman Empire-
Moesia and Thrace
Greece and Macedonia
Syria, Palestine, and Mesopotamia
The total population of Eastern Roman Empire was 34,000,000. Thus, the overall census of the Roman Empire after its division was 56 million.