725

Europe

 * publishes On the reckoning of time  calculating dates from the birth of . The AD system is subsequently disseminated throughout western Europe.

Africa

 * In resentment of the  against taxation, led to a revolt.

Asia

 * In, the  monk, astronomer, and mechanical engineer  applies the world's earliest known clockwork  mechanism to provide rotating motion to his astronomical.

Deaths

 * —, king of