9th century BC

The major Olmec site of San Lorenzo Tenochtitlán in Mesoamerica declined in importance, after having been active since 15th century BC.

Events

899 BC: The first year of King Yih of Zhou's reign is marked by a solar eclipse.
892 BC: Megacles, King of Athens, dies after a reign of 30 years and is succeeded by his son Diognetus.
892 BC: King Xiao of Zhou overthrows King Yih of Zhou and takes the throne.
891 BC: Tukulti-Ninurta II succeeds his father Adad-nirari II as king of Assyria.
890 BC: Naples some reports and excavations about the foundation of the city

887 BC: Soshenq II succeeds Osorkon I as king of Egypt.
885 BC: Takelot I succeeds Soshenq II as king of Egypt.
885 BC: King Yi of Zhou, son of King Yih, is restored to the throne.
884 BC: Ashurnasirpal II succeeds his father Tukulti-Ninurta II as king of Assyria.

~880 BC: Ashurnasirpal II moves the Assyrian capital from Assur to Nimrud.
879 BC: Death of King Yi of Zhou, king of the Zhou dynasty of China.
878 BC: King Li of Zhou becomes king of the Zhou dynasty of China.
874 BC: Osorkon II succeeds Takelot I as king of the Twenty-second Dynasty of Egypt.
874 BC: Ahab becomes king of Kingdom of Israel (approximate date).
872 BC: Parshvanatha, 23rd Tirthankara of Jainism was born.
872 BC: An exceptionally high flood from the Nile covers the floors of the Temple of Luxor.

865 BC: Kar Kalmaneser was conquered by the Assyrian king Shalmaneser III.
864 BC: Diognetus, Archon of Athens, dies after a reign of 28 years and is succeeded by his son Pherecles.
860 BC: The kingdom of Urartu is unified.

c. 858 BC: Aramu becomes king of Urartu.
858 BC: Shalmaneser III succeeds Ashurnasirpal II as king of Assyria.
854/3 BC: Battle of Karkar—An indecisive engagement between Assyrian king Shalmaneser III and a military alliance of the king of Damascus and lesser powers including the prince of Tyre. (Either 854 or 853 BC)
850 BC: Takelot II ascends to the throne of Upper Egypt
850 BC: The Middle Mumun Pottery Period begins in the Korean Peninsula.
850 BC: Tagaung Kingdom is founded by Abhiyaza of the Sakya clan of the Buddha, in present-day northern Burma at the upper banks of the Irrawaddy river.

845 BC: Pherecles, Archon of Athens, dies after a reign of 19 years and is succeeded by his son Ariphron.
842 BC: Shalmaneser III devastates the territory of Damascus; Kingdom of Israel and the Phoenician cities send tribute.
841 BC: Exile of King Li of Zhou, King of the Zhou dynasty of China.
841 BC: Records of the Grand Historian regards this year as the first year of consecutive annual dating of Chinese history.
841 BC: Ahaziah of Judah and Jehoram of Israel are assassinated, either by the Israelite usurper Jehu, or the newly crowned Hazael of Aram-Damascus, per the Tel Dan stele.
840 BC: Gopala Dynasty started in Nepal, first dynasty to rule in a country named Nepal despite its present geographical boundaries.

827 BC: King Xuan of Zhou 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.
c. 825 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.

817 BC: Pedubastis I declares himself king of Egypt, founding the Twenty-third Dynasty.
814 BC: Carthage is founded by Dido (traditional date).
811 BC: Adad-nirari III succeeds his father Shamshi-Adad V as king of Assyria.

804 BC: Adad-nirari III of Assyria conquers Damascus.
804 BC: Death of Pedubastis I, pharaoh.
c. 800 BC: Etruscan civilization.
Beginning of the Iron Age in Central Europe, spread of the Proto-Celtic Hallstatt culture, and the Proto-Celtic language.
Adena culture appears in present-day Northeastern United States.

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