From 25 B.C. the Romanprovince of Africa comprised the whole of the region between the mouth of the Ampsaga (Wad Rummel, Wad el Kebir) on the west, and the two tumuli called the altars of the Philaeni, the immutable boundary between Tripolitana and Cyrenaica, on the east (Tissot ii.
In the partition of the government of the provinces of the Roman empire between the senate and the emperor, Africa fell to the senate, and was henceforth administered by a proconsul.
The bulk of the population of RomanAfrica was invariably composed of three chief elements: the indigenous Berber tribes, the ancient Carthaginians of Phoenician origin and the Roman colonists.
Roman titles of power were adopted by successor states and other entities with imperial pretensions, including the Frankish kingdom, the Holy Roman Empire, the first and second Bulgarian empires (see List of Bulgarian monarchs), the Russian/Kiev dynasties (see czars), and the German Empire (see Kaiser).
By 610, the Classical Roman Empire had evolved into the Middle Age Byzantine Empire although it was never called this (rather it was called Romania or Basileia Romaion) and the Byzantines continued to consider themselves Roman until their fall in the 15th century.
The Holy Roman Empire, an attempt to resurrect the Empire in the West, was established in 800 when Pope Leo III crowned Charlemagne as Roman Emperor on Christmas Day, though the empire and the imperial office did not become formalized for some decades.