300 CE

Then the Christian-oriented dating system then spreading west across the Atlantic Ocean with the Western European explorers and religious faith to the continents of the Americas of the Western Hemisphere, then through the simultaneous movement of the various Christian churches, and Europeans along sea trading routes with the military / political / economic / social influences of Colonialism / Imperialism spread worldwide to Africa, Asia and Australia / Oceania.

In the 300s, the 4th century.

Geopolitics & Diplomacy

  • Emperor Diocletian begins construction of a palace that will become the city of Split (approximate date). Diocletian, who plans on abdicating, intends to use this palace as his place of retirement.source

Conflict & Security

  • The Yayoi period ends in Ancient Japan (approximate date).source
  • Caesar Constantius I wins a victory over the Franks (approximate date).source
  • Micheon becomes ruler of the Korean kingdom of Goguryeo.source

Exploration & Expansion

  • The Mayan civilization reaches its most prolific period, the classic period, in what is now Guatemala, Belize and parts of southern Mexico adjacent to the former two. During most of this period, Tikal dominates the Mayan world.source
  • The magnetic compass for navigation is invented in China (approximate date).source

Religion & Belief

  • Peter of Alexandria becomes Patriarch of Alexandria.source
  • The Tetrarchs are probably made in Egypt. After 330 they are moved to Constantinople and in 1204 they are installed at the corner of the facade of the St Mark's Basilica, Venice (approximate date).source
  • Approximate date of the Synod of Elvira in Elvira, Spain, which prohibits interaction with Jews, pagans, and heretics.source
  • Possible date of the Codex Vaticanus Graecus 1209 and Codex Sinaiticus, manuscripts of the Bible written in Greek.source
  • The Panchatantra, a Sanskrit collection of fables and fairy tales, is written in India.source
  • The Kama Sutra, an Indian handbook on the art of sexual love, is probably produced around this time by the sage Vatsyayana.source

Technology & Infrastructure

  • Diocletian's Palace, Split, Croatia, is built. Its model is nowadays kept at the Museo della Civilta Romana, Rome.source
  • Wootz steel is developed in India (approximate date).source

Climate & Environment

  • The lion becomes extinct from Armenia (approximate date).source
  • The Formative/Preclassic period in Mesoamerica comes to an end approximately around this year.source
  • The elephant becomes extinct in North Africa (approximate date).source
  • The Atlas wild ass becomes extinct (approximate date).source

Births

  • Hilary of Poitiers, Gallo-Roman bishop (approximate date)source
  • Macarius of Egypt, Coptic Christian monk and hermit (died 391)source
  • Frumentius, Syrian missionary and bishop (approximate date)source
  • Min of Jin, Chinese emperor of the Jin Dynasty (died 318)source
  • Aemilia Hilaria, Gallo-Roman physician (approximate date)source
  • Flavius Hermogenes, Roman prefect and politician (died 361)source
  • Zeno of Verona, Christian bishop and martyr (approximate date)source
  • Li Shou, Chinese emperor of the Cheng Han Dynasty (died 343)source

Deaths

  • Lüzhu, Chinese dancer, singer and music teachersource
  • Pei Wei, Chinese philosopher and politician (born 267)source
  • Jia Nanfeng, Chinese empress of the Jin Dynasty (born 257)source
  • Pan Yue, Chinese poet and writer (born 247)source
  • Sima Yu, Chinese prince of the Jin Dynasty (born 278)source
  • Zhang Hua, Chinese official, scholar and poet (born 232)source
  • Liu Ling, Chinese scholar and poet (born 221)source
  • Shi Chong, Chinese politician and statesman (born 249)source
  • Sporus of Nicaea, Greek mathematician (approximate date)source
  • Jia Mi, Chinese general, official and politiciansource