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Events

By Place

Roman Empire

* Caracalla's troops massacre the population of Alexandria, Egypt.
* Caracalla introduces a new coin, the Antoninianus. The weight of this coin is a mere ¹/₅₀ of a pound. Copper disappears gradually, and by the middle of the third century, with Rome's economy in crisis, the Antonianus will be the only official currency.

Asia

* Zhang Liao holds off Sun Quan's invasion force at the siege of Hefei.
* Reign of Vachagan I, king of Caucasian Albania (215–55).

Births

* Huang-fu Mi (d. 282)

Deaths

* Chen Wu, general under Sun Quan
* Dong Xi, general under Sun Quan
* Han Sui, sworn brother of Ma Teng who fought Cao Cao until the end of his life
* Yang Ang, general under Zhang Lu