Diodotus I vs Kavad I

Diodotus I, the Seleucid satrap of Bactria, declared independence from the Seleucid Empire. This revolt established the Greco-Bactrian Kingdom, a Hellenistic state in Central Asia.

Diodotus I established himself as the first king of the Greco-Bactrian Kingdom. He consolidated control over Bactria and Sogdiana, creating a powerful Hellenistic state.

Diodotus I successfully defended his new kingdom against attempts by the Seleucid king Antiochus II to reconquer Bactria. This secured the independence of the Greco-Bactrian Kingdom.

Kavad I embraced the Mazdakite movement, a religious and social reformist sect that advocated for communal property and egalitarianism. This support alienated the Zoroastrian clergy and nobility, leading to political instability.

The Sasanian nobility and Zoroastrian clergy, opposed to Kavad's Mazdakite policies, deposed him and imprisoned him in the 'Castle of Oblivion'. His brother Jamasp was placed on the throne as a puppet ruler.

Kavad escaped from prison with the help of his supporters and fled to the Hephthalite Huns. With their military backing, he returned to Persia, defeated Jamasp, and was restored as king, now indebted to the Hephthalites.

After his restoration, Kavad I implemented significant tax and administrative reforms to strengthen the central government. He introduced a fixed land tax and reorganized the bureaucracy, reducing the power of the nobility.