4th century

Year in Review 3rd Century Year in Review 4th Century Year in Review 5th Century

Centuries: 3rd century - 4th century - 5th century

Decades: 300s, 310s, 320s, 330s, 340s, 350s, 360s, 370s, 380s, 390s

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Events

• legalization of Christianity in the Roman Empire
• definitive declaration of biblical canon : Council of Carthage

Significant persons

• Emperor Constantine I

Inventions, Discoveries, Introductions