Euthydemus I vs Gautamiputra Satakarni

Euthydemus I, a Magnesian Greek, overthrew and killed Diodotus II, seizing the throne of the Greco-Bactrian Kingdom. This began the Euthydemid dynasty.

Euthydemus I was besieged in Bactra by the Seleucid king Antiochus III for two years. The siege ended with a negotiated peace that recognized Euthydemus's rule.

Euthydemus I negotiated a peace treaty with Antiochus III, recognizing Seleucid suzerainty in name but securing Greco-Bactrian independence. The treaty included a marriage alliance between the two dynasties.

Euthydemus I expanded the Greco-Bactrian Kingdom eastward into Sogdiana and possibly Ferghana. This extended Hellenistic influence deeper into Central Asia.

Gautamiputra Satakarni reestablished Brahmanical Hindu authority in the Deccan after centuries of foreign rule by Indo-Greeks and Shakas. He performed Vedic sacrifices and took the title 'Ekabrahmana' (unique Brahmin), symbolizing the restoration of Hindu kingship.

Gautamiputra Satakarni defeated the Western Kshatrapa ruler Nahapana, reconquering territories in Gujarat, Malwa, and the Konkan coast. This victory restored Satavahana control over western India and opened trade routes to the Arabian Sea.

Gautamiputra Satakarni commissioned a royal inscription at the Nasik caves, recording his conquests and titles. The inscription describes him as 'destroyer of the Shakas, Yavanas, and Pahlavas' and provides key historical evidence of his reign.

Gautamiputra Satakarni extended Satavahana rule from the Krishna River in the south to the Narmada River in the north, and from the Arabian Sea to the Bay of Bengal. This made the Satavahana Empire the largest in the Deccan during his reign.