A Coggle Diagram about King Cyrus(II) began expansion and successors continued conquest. , The Persian Empire promoted Zoroastrianism. , Cyrus was killed and suceeded by Cambyses, Persians used laws, generous policies, and tolerance toward conquered peoples to rule successfully. , Several religions coexisted in Persia. , Decline (Was conquered by Alexander the Great.), Achaemenid - was the ruling family of Classical Persian Empire. and Early Persians believed in three gods.