684

Asia

 * took power in China.
 * caliph succeeded by

Americas

 * — accedes to rulership of  polity of

Religion

 * — succeeds  as the 81st.

Births

 * , Chinese official and court eunuch (d. )

Deaths

 * , Chinese poet and official (born c. )

Heads of states

 * —  (684–685)
 * —, emperor of Japan (672–686)