( Ottoman Turkish : دَوْلَتِ عَلِيّهٔ عُثمَانِیّه Devlet-i ʿAliyye-yi ʿO s mâniyye , Modern Turkish : Yüce Osmanlı Devleti or Osmanlı İmparatorluğu ) was an empire that lasted from 1299 to 1923. At the height of its power, in the sixteenth and seventeenth centuries, the empire spanned three continents , controlling