820s BC
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| 1st millennium BC |
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Events and trends
- 828 BC/827 BC (14th year in the era of Gònghé)—King Xuan of Zhou becomes King of the Zhou Dynasty of China, ending almost two decades of the Gonghe Regency.
- 825 BC—Takelot II, king of Egypt, dies. Crown Prince Osorkon III and Shoshenq III, sons of Takelot, battle for the throne.
- 825 BC/824 BC—Ariphron, King of Athens, dies after a reign of 20 years and is succeeded by his son Thespieus.
- 823 BC—Death of Shalmaneser III, king of Assyria. He is succeeded by his son Shamshi-Adad V.
- 820 BC—Pygmalion ascends the throne of Tyre.