Vikings impact on Rome

[Flavivs Aetivs]

Yes the so-called "Byzantine" empire was just the Roman empire, and they continued to identify as Romans (to be a "Greek" or "Hellene" at that time was to be a Pagan, until the beginning of a Greek ethnogenesis after the events of 1204-1261).

Technically it really wasn't even a Greek empire considering much of inland Greece was only arbitrarily under Roman control until the late 10th century AD. It was by and large an Anatolian empire, really.