Yes yes, Africans have contributed plenty to the world. Especially northerners

Keep skirting around WEST AFRICA, THE HORN, SOUTH AFRICA, and CENTRAL AFRICA.
Timbuktu Manuscripts or (
Tombouctou Manuscripts) is a blanket term for the large number of historically important manuscripts that have been preserved for centuries in private households in
Timbuktu,
Mali. The collections include manuscripts about art, medicine, philosophy, and science, as well as priceless copies of the
Quran. The number of manuscripts in the collections has been estimated as high as 700,000.
[1]
The majority of manuscripts were written in
Arabic, but many were also in local languages, including
Manding,
Songhay and
Tamasheq.
[2] The dates of the manuscripts ranged between the late 13th and the early 20th centuries (i.e., from the Islamisation of the
Mali Empire until the decline of traditional education in
French Sudan).
Timbuktu Manuscripts - Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Bamum_script
The
Bamum scripts are an evolutionary series of six scripts created for the
Bamum language by
King Njoya of
Cameroon at the turn of the 19th century. They are notable for evolving from a
pictographicsystem to a
partially alphabetic syllabic script in the space of 14 years, from 1896 to 1910. Bamum type was cast in 1918, but the script fell into disuse around 1931.