Michael: Did you mean...?

View full lesson: http://ed.ted.com/lessons/vampires-folklore-fantasy-and-fact-michael-molina The myth of the bloodsucking vampire has stalked humans from ancient Mesopotamia to 18th-Century CE Eastern Europe, but it has differed in the...

Isaac I Komnenos was the Byzantine emperor from 1057 to 1059 CE. Although his reign was brief, he was known for being a capable and militarily astute general and emperor. As the first emperor to lead troops himself in battle in over 30 years...

The Empire of Nicaea was a successor state to the Byzantine Empire, or rather a Byzantine Empire in exile lasting from 1204 to 1261 CE. The Empire of Nicaea was founded in the aftermath of the sacking of Constantinople during the Fourth Crusade...

Leo the V the Armenian was emperor of the Byzantine Empire from 813 to 820 CE. He was of Armenian descent and the last ruler of the Isaurian dynasty which had been founded by Leo III (r. 717-741 CE). The emperor's reign, after early military...

Thessaly was an independent state in medieval Greece from 1267 or 1268 to 1394 CE, first as the Greek-ruled Thessaly and later as the Catalan and Latin-ruled Duchy of Neopatras. Under its sebastokrators, Thessaly was a thorn in the side of...

Theophilos was emperor of the Byzantine Empire from 829 to 842 CE. He was the second ruler of the Amorion dynasty founded by his father Michael II. Popular during his reign and responsible for a lavish rebuilding of Constantinople's palaces...

Constantine X Doukas was the ruler of the Byzantine Empire from 1059 to 1067 CE. During his reign, the Byzantine Empire was attacked by emerging enemies on all sides, including the Normans in Italy and the Seljuk Turks in Armenia and Anatolia...

Romanos IV Diogenes ruled the Byzantine Empire from 1068 to 1071 CE. He was a military emperor, and his policies and campaigns served to shore up Byzantine defenses against the Seljuk Turks. However, in the aftermath of the Byzantine defeat...

The Battle of Manzikert (Mantzikert) in ancient Armenia in August 1071 CE was one of the greatest defeats suffered by the Byzantine Empire. The victorious Seljuk army captured the Byzantine emperor Romanos IV Diogenes, and, with the empire...

Newgrange is a Neolithic monument located in the region of Bru na Boinne, County Meath, Ireland. The name is fairly modern and comes from the 'newer' grange (farm) of the monks of Mellifont Abbey near Drogheda 8 miles (14 km) north. Although...