Powerful Hellenistic states were established in the areas of Bactria and Sogdiana, and later northern India for three centuries following the conquests of Alexander the Great around 330 BC, the Seleucid empire until 250 BC, followed by the Greco-Bactrian kingdom until 130 BC, and the Indo-Greek kingdom from 180 BC to around 10 BC.
The clearest examples of Hellenistic art are found in the coins of the Greco-Bactrian kings of the period, such as Demetrius I of Bactria. Many coins of the Greco-Bactrian kings have been unearthed, including the largest silver and gold coins ever minted in the Hellenistic world, ranking among the best in artistic and technical sophistication: they "show a degree of individuality never matched by the often more bland descriptions of their royal contemporaries further West". ("Greece and the Hellenistic world").