Ottoman Empire:

The Ottoman Empire (/tmn/; Ottoman Turkish: Devlet-i Aliyye-i Osmaniyye, Modern Turkish: Osmanl Imparatorlugu or Osmanl Devleti), also known as the Turkish Empire, Ottoman Turkey or Turkey, was an empire founded in 1299 by Oghuz Turks under Osman I in northwestern Anatolia. After conquests in the Balkans by Murad I between 1362 and 1389, the Ottoman sultanate was transformed into a transcontinental empire and claimant to the caliphate. The Ottomans ended the Byzantine Empire with the 1453 conquest of Constantinople by Mehmed the Conqueror.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". When was the Ottoman empire founded?
1299