300 CE
First beginning in Europe at the end of the Roman Empire (after the split of the Western Roman Empire and Eastern Roman Empire (later Byzantine Empire) in the early Middle Ages / Medieval period.
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
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
Climate & Environment
Births
- Hilary of Poitiers, Gallo-Roman bishop (approximate date)source
- Macarius of Egypt, Coptic Christian monk and hermit (d. 391)source
- Frumentius, Syrian missionary and bishop (approximate date)source
- Min of Jin, Chinese emperor of the Jin Dynasty (d. 318)source
- Aemilia Hilaria, Gallo-Roman physician (approximate date)source
- Flavius Hermogenes, Roman prefect and politician (d. 361)source
- Zeno of Verona, Christian bishop and martyr (approximate date)source
- Li Shou, Chinese emperor of the Cheng Han Dynasty (d. 343)source
Deaths
- Lüzhu, Chinese dancer, singer and music teachersource
- Pei Wei, Chinese philosopher and politician (b. 267)source
- Jia Nanfeng, Chinese empress of the Jin Dynasty (b. 257)source
- Pan Yue, Chinese poet and writer (b. 247)source
- Sima Yu, Chinese prince of the Jin Dynasty (b. 278)source
- Zhang Hua, Chinese official, scholar and poet (b. 232)source
- Liu Ling, Chinese scholar and poet (b. 221)source
- Shi Chong, Chinese politician and statesman (b. 249)source
- Sporus of Nicaea, Greek mathematician (approximate date)source
- Jia Mi, Chinese general, official and politiciansource