Bassa Vah is the written alphanet of Bassa people of Liberia. It evolved from a tradition of leaving marks in nature to transmit messages to the peers. In times of colonization it was prohibited, but it was found back among slaves in Brazil by Dr. Lewis. He revived the script, and brought it back to Liberia. Since Bassa is a tonal language, the script incorporates diacritics, used to define the tonal quality of the sounds.
