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.
The Byzantine Empire was another name for the surviving eastern half of the Roman Empire. As you read in a previous chapter, the weaker western half of the Roman Empire, including the city of Rome, fell to barbarian invaders. What was left of the Roman Empire was ruled by the emperor in Constantinople. The Byzantine Empire survived for another 1,000 years, finally falling to the Ottoman Turks in 1453. The city of Constantinople, built on a peninsula surrounded by three bodies of water: the Bosphorus, Sea of Marmara, and the Golden Horn.