The country has been home to various peoples through the ages, among them the ancient Iranian peoples who established the dominant role of Indo-Iranian languages in the region. At multiple points, the land has been incorporated within vast regional empires, among them the Achaemenid Empire, the Macedonian Empire, the Maurya Empire, and the Islamic Empire. For its success in resisting foreign occupation during the 19th and 20th centuries, Afghanistan has been called the "graveyard of empires", though it is unknown who coined the phrase.