Emperor go daigo: Did you mean...?

Legio I Adiutrix was a legion of the Roman army formed from veteran sailors after the death of Roman emperor Nero (r. 54-68 CE). During its long career, the legion accompanied Trajan (r. 98-117 CE) on his Dacian and Parthian campaigns, fought...

Maximinius Thrax ruled briefly as the Roman emperor from 235 CE to his death in 238 CE. The young Roman Emperor Alexander Severus secured the imperial throne after the assassination of his cousin Elagabalus by the Praetorian Guard in 222...

It has been said that the greatest enemy of Rome was Rome itself, and this is certainly true of the period known as the Crisis of the Third Century (also known as the Imperial Crisis, 235-284). During this time of almost 50 years, over 20...

The Hongwu Emperor, the first emperor of the Ming Dynasty (1368 to 1644 CE) who reigned from 1368 to 1398 CE. 14th century CE painted silk hanging. (National Palace Museum, Taipei)

A 10th century portrait on a hanging silk scroll of Taizu, first emperor of the Song dynasty in China, r. 960-976. The extensions on the emperor's black gauze cap symbolise his power and dignity. National Palace Museum, Taipei.

The Roman Empire, at its height (c. 117), was the most extensive political and social structure in western civilization. Building upon the foundation laid by the Roman Republic, the empire became the largest and most powerful political and...

The shoguns of medieval Japan were military dictators who ruled the country via a feudal system where a vassal's military service and loyalty was given in return for a lord's patronage. Established as an institution by the first shogun proper...

A 16th century CE portrait on silk of Japanese Emperor Kammu (r. 781 to 806 CE) who is most noted for relocating the capital to Heiankyo (Kyoto) in 784 CE. (Enryaku-ji Monastery, near Kyoto, Japan)

A silk scroll portrait of the Yongle Emperor (aka Chengzu or Yung Lo, r. 1403-1424 CE) who was the third ruler of the Chinese Ming Dynasty (1368-1644 CE). (National Palace Museum, Taibei)

A portrait of Chinese emperor Gaozu, founder of the Tang Dynasty, r. 618-626 CE.