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.
By the end of the 1st century AD, the Roman Empire was already the greatest empire of the ancient world. However, at the end of the 5th century AD, various economic factors and ceaseless pressure from barbarian peoples on the frontiers of the empire led to its eventual collapse in western Europe.he formation of the Roman Empire began under the Roman Republic, but was formed mostly by the early Roman emperors, and is often thought of as belonging particularly to the imperial dynasties who held power in Rome after the collapse of the old Republican constitution.