300-400: Christianity Becomes the Official Religion of the
Roman Empire

- 314 C.E. – 318 C.E. Eusebius of Caesaria (263 – 339 C.E.)
- October 18, 329 C.E. Emperor Constantine the Great (306-337)
- November 29, 330 C.E. Emperor Constantine I the Great (306-337)
- 333 C.E. The Bordeaux Pilgrim
- August 13, 339 C.E. Emperor Constantius II (337 – 361)
- March 1, 363 Emperor Julian “The Apostate” (361–363 C.E.)
- May 6, 368 C.E. Roman Emperor Valentinian I (364 – 375)
- May 21, 383 Valentinian II (375 – 392)
- 388 C.E. Christians Destroy a Synagogue in Syria
- March 14, 388 C.E. Emperor Valentinian II (375 – 392)
- 392 C.E. Church Leader Jerome (347 C.E. – 420 C.E.)
- September 29, 393 C.E. Emperors Theodosius I (379 – 395) and Honorius (393 – 423)
- February 28, 396 C.E. Emperors Arcadius (395 – 408) and Honorius (393 – 423)
- June 17, 397 C.E. Emperors Arcadius (395 – 408) and Honorius (393 – 423)
- July 1, 397 C.E. Emperors Arcadius (395 – 408) and Honorius (393 – 423)
- February 3, 398 Emperors Arcadius (395 – 408) and Honorius (393 – 423)
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