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Events

By Place

Roman Empire

• Constantinople, capital of Emperor Constantius II becomes the largest city of the world, taking the lead from Rome, capital of Emperor Constans.^*
• Constantine II attacks his brother Constans near Aquileia, aiming for sole control of the western half of the Empire, but is defeated.
• Constans and Constantius II split the Empire between them.

By Topic

Religion

• Acacius succeeds Eusebius as bishop in the see of Caesarea

Births

• Ambrose, church father (approximate date)
• Jerome, Bible translator (approximate date)
• Quintus Aurelius Symmachus, politician and pagan (approximate date)

Deaths

• Constantine II, joint emperor of the Roman Empire (killed in battle)
• Saint Macrina the Elder

340

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