Events and trends
- 827 BC – Zhou xuan wang becomes King of the Zhou Dynasty of China.
- 825 BC – Takelot II, king of Egypt, dies. Crown Prince Osorkon III and Shoshenq III, sons of Takelot, battle for the throne.
- 825/824 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.