Aidin vilayet

First-level administrative division of the Ottoman Empire

The Vilayet of Aidin or Aydin also known as Vilayet of Smyrna or Izmir after its administrative centre, was a first-level administrative division (vilayet) of the Ottoman Empire in the south-west of Asia Minor, including the ancient regions of Lydia, Ionia, Caria and western Lycia. It was described by the 1911 Encyclopædia Britannica as the "richest and most productive province of Asiatic Turkey".

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