View source for 522 BC

==== Persian Empire ====
* [[Bardiya]] succeeds [[Cambyses II]] as ruler of [[Iran|Persia]].<ref name="Briant">{{cite book|last=Briant|first=Pierre|title=From Cyrus to Alexander: A History of the Persian Empire|year=2002|publisher=Eisenbrauns |page=98}}</ref>
* [[Babylon]] rebels against [[Achaemenid Empire|Persian]] rule.<ref>{{Cite book|last=Dandamaev|first=Muhammad A.|url=https://books.google.com/books?id=ms30qA6nyMsC&pg=PA116 |title=A Political History of the Achaemenid Empire|publisher=BRILL|year=1989|isbn=978-9004091726|page=116 }}</ref>
* [[Darius I of Persia|Darius I]] succeeds [[Bardiya]] as ruler of [[Iran|Persia]]. He is the son of a government official.<ref name="Briant" />