How far did the Roman Empire reach?

At its height during the reign of Trajan, it stretched from Scotland to Ethiopia, and from the Atlantic to the Euphrates. This would have been in the early 2nd century AD. read more

At the peak of the Roman Empire's reach, around A.D. 117, the Empire stretched as far north as modern Scotland, stretched down through Europe east into Asia as far as the border between modern day Iraq and Iran, with its southern reaches extending into northern Africa. read more

Following his African conquests, the Roman Empire may have reached its greatest extent during the reign of Septimius Severus, under whom the empire encompassed an area of 2 million square miles (5.18 million square kilometers). read more