What is Roman Empire civilization?

A Roman Empire is a series of empires who each claimed the right for the imperial throne and who considered themselves the heirs of the Roman Empire founded by Augustus. After the colapse of the Western Roman Empire in 476 AD, the East Roman Empire commonly known as Byzantine Empire considered themselves the true heirs of the once powerful empire. They had all rights to do so and despite their helenistic metamorphosis, they considered themselves Romans until the very end in 1453 AD. Another Empire had risen in The Dark Ages thus claiming they were the rightfull heirs of the West Empire as well as of the Empire as a whole. That was the Frankish Kingdom. On Christmas Day 800 AD pope Leo III crowned Chalemagne as a Roman Emperor. The Empire had split apart and had a series of turmoils until the pope of 968 John XII didn't crowned Otto I as emperor. From that moment on The Holy Roman Empire enters the pages of history surviving until 1804 when it was abolished by Napoleon. After the colapse of Byzantium, the empire who destroyed them considered themselves sole heirs of Augustus' empire. They were The Ottoman Empire which lasted from 1300 to World War I when the republic was founded by Ataturk. However even the pope claimed his right as an heir of the Empire calling upon the Donation of Constantine, a probably false document in which Constantine the Great leaves his Wordly rights to pope Sylvester I. Ivan Groznyi, the first Russian Emperor, had also considered himself a Roman Emperor. Even Moscow was refered as the third Rome. A Roman Empire is a series of empires who each claimed the right for the imperial throne and who considered themselves the heirs of the Roman Empire founded by Augustus. After the colapse of the Western Roman Empire in 476 AD, the East Roman Empire commonly known as Byzantine Empire considered themselves the true heirs of the once powerful empire. They had all rights to do so and despite their helenistic metamorphosis, they considered themselves Romans until the very end in 1453 AD. Another Empire had risen in The Dark Ages thus claiming they were the rightfull heirs of the West Empire as well as of the Empire as a whole. That was the Frankish Kingdom. On Christmas day 800 AD pope Leo III crowned Chalemagne as a Roman Emperor. The Empire had split apart and had a series of turmoils until the pope of 968 John XII didn't crowned Otto I as emperor. From that moment on The Holy Roman Empire enters the pages of history surviving until 1804 when it was abolished by Napoleon. After the colapse of Byzantium, the empire who destroyed them considered themselves sole heirs of Augustus' empire. They were The Ottoman Empire which lasted from 1300 to World War I when the republic was founded by Ataturk. However even the pope claimed his right as an heir of the Empire calling upon the Donation of Constantine, a probably false document in which Constantine the Great leaves his Wordly rights to pope Sylvester I. Ivan Groznyi, the first Russian Emperor, had also considered himself a Roman Emperor. Even Moscow was refered as the third Rome.