Articoli / Articles Mouldi Lahmar, Arab Spring, Colonial Knowledge, and Foreign Intervention in Libya: The Revival of “Tribe” Fantahun Ayele, The Life of Däǧǧač Abba Wǝqaw Bǝrru: Some Notes on Sirak’s Manuscript (Addis Ababa, Institute of Ethiopian Studies, MS 400) Biyan G. Okubagherghis, Livelihood and Sustainability in the Eritrea-Ethiopia Borderland: A Case Study of Soräna Chama Kaluba Jickson, Food Security and State Agricultural Policies: The Long History of Cassava in Zambia from the Pre-Colonial Period to 1990 Angelo Del Boca, La “Lectio” Recensioni / Reviews Alessandra Brivio, Donne, emancipazione e marginalità (Gaetano Ciarcia) Stefano Bellucci and Andreas Eckert (eds.), General Labour History of Africa (Jean Copans) Autori / Contributors