<P> At the peak of Roman imperial power in the 2nd century , the population of the city numbered about a million people , a size that it never attained again until its becoming the capital of the Republic of Italy in 1946 ; close to three percent of the population of the empire lived within its limits . Following the Crisis of the Third Century and the transfer of the imperial capital to Constantinople in AD 330 , Rome entered a period of gradual decline . </P>
<P> At the peak of Roman imperial power in the 2nd century , the population of the city numbered about a million people , a size that it never attained again until its becoming the capital of the Republic of Italy in 1946 ; close to three percent of the population of the empire lived within its limits . Following the Crisis of the Third Century and the transfer of the imperial capital to Constantinople in AD 330 , Rome entered a period of gradual decline . </P>
what was the population of ancient rome at its height
what was the population of ancient rome at its height
about a million people
about a million people