Imperial: Did you mean...?

The Edo period refers to the years from 1603 until 1868 when the Tokugawa family ruled Japan. The era is named after the city of Edo, modern-day Tokyo, where the Tokugawa shogunate had its government. It is also sometimes referred to as the...

Diocletian was Roman emperor from 284 to 305 CE. After the defeat and death of the Roman emperor Philip the Arab in 249 CE, the empire endured over three decades of ineffective rulers. The glory days of Augustus, Vespasian, and Trajan were...

The government of the Byzantine Empire was headed and dominated by the emperor, but there were many other important officials who assisted in operating the finances, judiciary, military, and bureaucracy of a huge territory. Without elections...

The Hundred Days refers to the second reign of French Emperor Napoleon I, who unexpectedly returned from exile to reclaim the French throne. It encompasses Napoleon's triumphant return to Paris on 20 March 1815, his climactic defeat at the...

Tsar (also czar) is a Slavic term derived from the Latin caesar. Ivan III (Ivan the Great) (r. 1462-1505) was the first Russian ruler to begin using the title of tsar during his reign instead of the title Grand Prince of Moscow. His grandson...

The Yongle Emperor (aka Chengzu or Yung Lo, r. 1403-1424 CE) was the third ruler of the Chinese Ming Dynasty (1368-1644 CE). Inheriting a stable state thanks to the work of his father, the Hongwu Emperor (r. 1368-1398 CE), Yongle made lasting...

Edo Castle was a large castle built by the Tokugawa family in 17th-century Japan. It served as their seat of government for more than 260 years. After the Meiji Restoration of 1868, Edo became the capital of Japan and was renamed Tokyo. Edo...

The Lombards were a Germanic tribe that originated in Scandinavia and migrated to the region of Pannonia (roughly modern-day Hungary). Their migration is considered part of "The Wandering of the Nations" or "The Great Migration", which was...

Germanicus (15 BCE - 19 CE) was a commander in the Roman Empire with a glowing reputation in his time under the rule of the Emperor Tiberius. His position in the Roman Empire was a unique and important one. His marriage to Agrippina the Elder...

Alexander Severus served as the Roman emperor from 222 CE until his untimely death in 235 CE. At the urging of his mother, aunt, and grandmother, Emperor Elagabalus named his cousin Alexianus (the future Alexander Severus) as his heir in...