800s BC (decade)

Events and trends

804 BC—Adad-nirari III of Assyria led a campaign into Syria and Palestine, reaching Gaza.<ref>Template:Cite EBO</ref>
c. 800 BC—Greek Dark Ages end.
c. 800 BC—Archaic period in Greece begins. (It ends in 480 BC with the invasion of Xerxes.)Template:Fact
From c. 800 BC – The Upanishads are composed.
c. 800 BC–700 BC—Pre-Etruscan period in Italy.
Etruscan civilization.
The Olmecs build pyramids.<ref>Template:Cite web</ref><ref>Template:Cite web</ref>

800 BC—End of the reign of Polydectes, king of Sparta from 830 BC.
800 BC—Beginning of the reign of Eunomus, king of Sparta until 780 BC.
800 BC—Emergence of the first communities settled in the Chincha Valley (Peru), pertaining to Paracas culture in the south coast of Peru.
c. 800 BC—End of Period IVB, Hasanlu (Iran) is completely destroyed by a fire.<ref name=":0">Template:Cite web</ref>
c. 800 BC—The Greek Colonization of the Mediterranean & Black Sea.<ref name=":1" />
c. 800 BC—Homer of Greece writes his Iliad and Odyssey. ( - 700 BCE)<ref name=":1">Template:Cite web</ref>
c. 800 BC—Assyrian army makes a use of the new technology by which iron can be hardened into steel suitable for weapons.<ref name=":2" />
c. 800 BC—Earliest surviving sundial is in use in Egypt.<ref name=":2">Template:Cite web</ref>
c. 800 BC—Beginning of Iron Age in Britain (until 43 AD).<ref>Template:Cite web</ref>
c. 800 BC—pharmaceutical production area active at Heraion Teikhos, Thrace.<ref>Template:Cite web</ref>

804 BC—Duke Wen of Qi, ruler of the state of Qi<ref name="shiji">Template:Cite web</ref><ref name="han">Template:Cite book</ref>
804 BC—Pedubastis I, pharaoh
800 BC—Xiong Xun, monarch of the state of Chu during the Western Zhou dynasty of ancient China.
c. 800 BC—Hasanlu Lovers, pair of human remains found at Teppe Hasanlu, possibly a couple.<ref name=":0" />