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By comparison, what is now the territory of China experienced 0.1 percent annual growth from 1 CE to 1800 CE. After a population decline following the disintegration of the western half of the Roman state in the 5th and 6th centuries, Europe probably re-attained Roman-era population totals in the 12th and 13th centuries.
With 2,860,009 residents in 1,285 km 2 (496.1 sq mi), [2] Rome is the country's most populated comune and the third most populous city in the European Union by population within city limits. The Metropolitan City of Rome, with a population of 4,355,725 residents, is the most populous metropolitan city in Italy. [3]
The Rome metropolitan area includes the city of Rome and 59 municipalities. It is the third-most populous in Italy with a population of 4,353,738 as of 2017 [update] . [ 3 ] All are within the Metropolitan City of Rome Capital except Aprilia in the Province of Latina .
Rome reached its greatest territorial extent under Trajan (r. 98–117 AD), but a period of increasing trouble and decline began under Commodus (r. 180–192). In the 3rd century, the Empire underwent a 49-year crisis that threatened its existence due to civil war, plagues and barbarian invasions.
UN estimates (as of 2017) for world population by continent in 2000 and in 2050 (pie chart size to scale) Asia Africa Europe Central/South America North America Oceania. Population estimates for world regions based on Maddison (2007), [29] in millions. The row showing total world population includes the average growth rate per year over the ...
Map of the world in 323 BC Map of the Eastern Hemisphere in 100 BC. Classical demography refers to the study of human demography in the Classical period.It often focuses on the absolute number of people who were alive in civilizations around the Mediterranean Sea between the Bronze Age and the fall of the Western Roman Empire, but in recent decades historians have been more interested in ...
70.4% of Italian population is classified as urban, [55] a relatively low figure among developed countries. Italy's administrative boundaries have seen significant devolution in recent decades; the metropolitan area was created as a new administrative unit, and major cities and metro areas now have a provincial status.
The population of Europe in 2015 was estimated to be 741 million according to the United Nations, [12] which was slightly less than 11% of the world population. The precise figure depends on the exact definition of the geographic extent of Europe. The population of the European Union (EU) was 509 million as of 2015. [13]