16.While English has emerged as a global lingua franca, there are also efforts to preserve linguistic diversity and revitalize endangered languages through digital technologies.
17.Any intelligent organism would at the very least need the ability to locate the position of objects in space. So the ideal interstellar lingua franca would be haptic.
20.Travel accounts confirm that, from the middle of the nineteenth century until the early 1900s, Sakha language was a lingua franca in eastern Siberia.