Home âº Research Methods âº Correlation. Correlation means association-more precisely it is a measure of the extent to which two variables are related. If an increase in one variable tends to be associated with an increase in the other then this is known as a positive correlation.
A.D. 468. Photo credit: Fourat/Panoramio. Just like the army, the Roman navy has had its fair share of military disasters. In this one, a joint naval expedition (reputedly one the biggest in ancient times) by the Empire and the independent province of Illiricum against the Vandal Kingdom ended in a huge lopsided defeat.his battle marked the first time that a Roman emperor died at the hands of a foreign enemy. Set in the modern-day city of Razgrad, Bulgaria, the battle pitted the Romansâled by the co-emperors Decius and his son Herenniusâagainst the Goths.
Valentinian emerged as victor and single leader in 364. He immediately divided the empire again, giving the eastern half to his brother Valens. Succession rebellions in the west eventually forced the Eastern emperor Theodosius I to quell the rebellions and become a single ruler of a unified Roman empire again. He was however the last emperor to rule both East and West. After his death in 395, his two sons inherited the East and West respectively. This was the final and permanent division of the Roman empire. The Western half wouldn't last long, finally falling in 476 with the sack of Rome.