An alphabet invented with eyes closed by two children

The Adlam alphabet is a writing system created in 1989 to transcribe the Fula language. Its inventors are Abdoulaye and Ibrahima Barry, two brothers then aged ten and fourteen in Guinea. To design the letters, they drew shapes on paper with their eyes closed before associating the best strokes with the sounds of their language, resulting in a set of twenty-eight letters and ten digits.