343

343 (CCCXLIII) was a common year beginning on a Saturday of the Julian calendar, in force on that date.

In the Roman Empire, the year was named as the consulate of Memius and Romulus, or less commonly, as 1096 Ab urbe condita, acquiring its name as 343 at the beginning of the Middle Ages, when the anno Domini was established.

Events

• The Council of Sárdica is called.
• The Emperor Constant visits Great Britain.