Why did the Ionic order become especially important in eastern Greece?

The Ionic order became especially important in eastern Greece because it originated there as the regional architectural idiom, developing alongside the Doric order of the Greek mainland. While the Doric style was characterized by robust, heavy forms, the Ionic order was inherently more ornate and less stereotyped, allowing for greater decorative freedom.12

In eastern Greece (Asia Minor), the Ionic order was utilized for monumental projects of exceptional scale and complexity. Temples in this region, such as the Temple of Artemis at Ephesus and the Heraion of Samos, were among the largest and most elaborately decorated in the Greek world, often featuring double or triple rows of columns. This emphasis on grandeur and decorative detail—such as the development of the volute capital and refined moldings—defined the architectural identity of the Ionian cities. Because the Ionic style was the established tradition in these eastern areas, it remained the primary idiom for new temple construction throughout the Hellenistic period, even as other styles gained influence elsewhere.213