Question: Janina Vilayet was a division created by merging a subdivision of the Ottoman Empire known as what?
Sentence (from "Janina Vilayet"): The Vilayet of Janina, Yanya or Ioannina (Ottoman Turkish: ولايت يانیه, Vilâyet-i Yanya‎ ) was a first-level administrative division (vilayet) of the Ottoman Empire, established in 1867.
Relevant evidence: No