4th century

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Eastern Hemisphere at the beginning of the 4th century CE.
Eastern Hemisphere at the end of the 4th century CE.

The 4th century was the time period from AD 301 (represented by the Roman numerals CCCI) to AD 400 (CD) in accordance with the Julian calendar. In the West, the early part of the century was shaped by Constantine the Great, who became the first Roman emperor to adopt Christianity. Gaining sole reign of the empire, he is also noted for re-establishing a single imperial capital, choosing the site of ancient Byzantium in 330 (over the current capitals, which had effectively been changed by Diocletian's reforms to Milan in the West, and Nicomedeia in the East) to build the city soon called Nova Roma (New Rome); it was later renamed Constantinople in his honor.

The last emperor to control both the eastern and western halves of the empire was Theodosius I. As the century progressed after his death, it became increasingly apparent that the empire had changed in many ways since the time of Augustus. The two-emperor system originally established by Diocletian in the previous century fell into regular practice, and the east continued to grow in importance as a centre of trade and imperial power, while Rome itself diminished greatly in importance due to its location far from potential trouble spots, like Central Europe and the East. Late in the century Christianity became the official state religion, and the empire's old pagan culture began to disappear.[citation needed] General prosperity was felt throughout this period, but recurring invasions by Germanic tribes plagued the empire from 376[1][2] CE onward. These early invasions marked the beginning of the end for the Western Roman Empire.

In

Fu Jiān, united the north under his banner, and planned to conquer the Jin dynasty in the south, so as to finally reunite the land, but was decisively defeated at the Battle of Fei River
in 383, causing massive unrest and civil war in his empire, thereby leading to the fall of the Former Qin, and the continued existence of the Eastern Jin dynasty.

According to archaeologists, sufficient archaeological evidence correlates of state-level societies coalesced in the 4th century to show the existence in Korea of the Three Kingdoms (300/400–668 CE) of Baekje, Goguryeo, and Silla.

Long Fourth Century

Historians of the Roman Empire refer to the "Long Fourth Century" to the period spanning the fourth century proper but starting earlier with the accession of the Emperor Diocletian in 284 and ending later with the death of Honorius in 423 or of Theodosius II in 450.[3]

Events

Constantine I
(r. 306–337 AD)
Tikal had a population of about 100,000 when it was conquered by Teotihuacan, less than a fourth of its peak population[4]

Inventions, discoveries, introductions

References

  1. ^ a b "The invention and influences of stirrup". Archived from the original on December 3, 2008.
  2. ^ a b Roberts, J: "History of the World". Penguin, 1994.
  3. ^ The Long Fourth Century 284-450: Continuity and Change in the Later Roman Empire ed. S. McGill, C. Sogno and E. Watts (Cambridge 2008).
  4. ^ "The Maya: Glory and Ruin". National Geographic Magazine. Archived from the original on April 9, 2008.
  5. ^ "The Austronesians: Historical and Comparative Perspectives". ANU Press. Archived from the original on 2013-12-25. Retrieved 2013-04-29.
  6. ^ Lee, Adela C.Y. "The stirrup and its effect on chinese military history". Silkroad Foundation.
  7. from the original on 4 May 2016. Retrieved 7 December 2014.
  8. .
  9. ^ Bag, A.K. (1979). Mathematics In Ancient and Medieval India. Delhi: Chaukhambha Orientalia. p. 15.
  10. .
  11. ^ "Liste Handschriften". Münster: Institute for New Testament Textual Research. Retrieved 16 March 2013.