Wolof is a Niger-Congo language with about 3,2 million speakers in Senegal, France, Gambia, Guinea, Guinea-Bissau, Mali and Mauritania. Wolof is one of the six national languages of Senegal, along with Serer, Mandinka, Pulaar, Diola and Soninke.
The Wolof orthography using the Latin alphabet was standardised in 1974. Before then Wolof was usually written with a version of the Arabic script known as Wolofal, which is still used by many older men in Senegal.
source
wikipedia.org,
omniglot.com &
ethnologue.com