Annals of The Fulani Jihad is a decision available to 
Sokoto.
It can be taken when Sokoto have a literacy rate of at least 4.0%, and it will give 2 Prestige.
In its effort to westernize Sokoto will want to increase its literacy along the way, so this is just a boost on the way.
The description reads: Abdullah dan Fodio (1766-1828), the emir of Gwandu, wrote, while he was still alive, a book on the Fulani Juhad, the baptism of fire by which Sokoto was formed. By spreading word of this magnificent work of history, we can bring glory and renown to our nation.