300
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Events
By Place
Roman Empire
- Franks penetrate into northern Belgium (approximate date).
- Split is built in Dalmatia.
- Diocletian's wall is built in Palmyra.
- Romano-Celtic temple-mausoleum complex is constructed in Lullingstone, and also in Anderida (approximate date).
Africa
- Elephants became extinct from North Africa by this date.
- The Algerian Wild Ass became extinct around this date.
Europe
The Americas
- Maya civilization established in what is now Belize.
By Topic
Arts and Sciences
- Magnetic compass for navigation is invented in China (approximate date).
- A Sanskrit collection of fables and fairy tales, the Panchatantra is written in India.
Religion
- Peter of Alexandria becomes Patriarch of Alexandria.
- Possible date of the Codex Vaticanus and Codex Sinaiticus, manuscripts of the Bible written in Greek.
- Tridates III makes his kingdom of Armenia the first state to adopt Christianity as its official religion.
- Approximate date of the Synod of Elvira in Elvira, Spain, which was a church council that prohibited interaction with Jews, pagans, and heretics.
Births
- Asanga, founder of the Yogacara of Mahayana Buddhism (approximate date).
- Hilary of Poitiers (approximate date)
Deaths
- December 28 - Theonas, Patriarch of Alexandria
- Sporus of Nicaea, Greek mathematician and astronomer (approximate date)af:300
ar:300 an:300 ast:300 az:300 bn:৩০০ bpy:মারি ৩০০ bs:300 bg:300 ca:300 cv:300 cs:300 co:300 da:300 de:300 el:300 es:300 eo:300 eu:300 fr:300 ko:300년 hr:300 io:300 id:300 it:300 ka:300 ht:300 (almanak jilyen) la:300 lb:300 lmo:300 hu:300 ms:300 nl:300 ja:300年 nap:300 no:300 nn:300 oc:300 pl:300 pt:300 ro:300 ru:300 год sq:300 ru-sib:300 scn:300 sk:300 sl:300 sr:300 fi:300 sv:300 tt:300 tr:300 uk:300 uz:300 vec:300 zh:300年