The best known and widely used Maori art motifs are the koru and the spiral. The koru is basically a stalk with a bulb at one end. No one knows how it was first invented or who elaborated this versatile element of pattern.Koru-like motifs are present in the arts of ancient Asia, notably in the areas of Southern China and South-east Asia. They abound in the tribal arts of Melanesia.o one knows how it was first invented or who elaborated this versatile element of pattern. Koru-like motifs are present in the arts of ancient Asia, notably in the areas of Southern China and South-east Asia. They abound in the tribal arts of Melanesia.
After the Roman Empire fell, the remnant, the Eastern Empire came to be known as the Byzantine Empire. The Byzantine emperors called themselves Emperors of the Romans.   **Actually the answer above is a bit off the mark. Constantine was the Emperor who reunited the Empire.
Even so, the empire was still so vast that Diocletian divided it in half in 285 CE to facilitate more efficient administration. In so doing, he created the Western Roman Empire and the Eastern Roman Empire (also known as the Byzantine Empire). Since a leading cause of the Imperial Crisis was a lack of clarity in succession, Diocletian decreed that successors must be chosen and approved from the outset of an individualâs rule.