721

Decades: 670s 680s 690s 700s 710s - 720s - 730s 740s 750s 760s 770s

Years: 716 717 718 719 720 - 721 - 722 723 724 725 726

• Former Byzantine emperor Anastasius II leads a revolt against emperor Leo III
• Theuderic IV succeeds Chilperic II
• Battle of Covadonga is won by Pelayo, thus preventing the takeover of his Christian Kingdom of Asturias by the Islamic Moors.

• Abu Musa Jabir Ibn Hayyan, Arabian alchemist (approximate date)
• Al-Saffah, first Abbasid caliph

• Anastasius II