How long was the revolution period existed which strongly influenced Ottomanism?
Ottomanism:  Ottomanism was strongly influenced by thinkers such as Montesquieu and Rousseau and the French Revolution. French Revolution: The French Revolution (French: "Révolution française" ] ) was a period of far-reaching social and political upheaval in France that lasted from 1789 until 1799, and was partially carried forward by Napoleon during the later expansion of the French Empire.
1789 until 1799