Who invented lebanon?

Lebanon was a creation of the French colonizers. During Ottoman times, current Lebanon was part (but not all) of the Vilayet of Beirut (which extended into what is now northern Israel, and the Syrian Alawite State). Because of the historic relationship between the Maronite Catholics and their fellow Catholic Leaders in France and the Papacy, Mount Lebanon was given semi-autonomy in the Ottoman Empire as the Mutasarrifat of Mount Lebanon and was under a somewhat different administration as the rest of Lebanon (Tripoli, Beirut, Tyre).

When the French took control of the area in 1919 as a result of the Treaty of Versailles and the Sykes-Picot Agreement, they chose to merge the Maronite Catholic areas in the Anti-Lebanon mountains with the nearby coastal regions that had large Sunni and Shiite Muslim populations and create "Greater Lebanon". It is these borders that have stayed to the present.