Zambian Vice-President Dr. Guy Scott has taken over as acting president following the death of President Michael Sata, with elections for a permanent successor to be held within 90 days. Dr. Scott's rise marks him as Africa's first white head of state in many years, while Sata's death comes just after Zambia's 50th independence anniversary. The document also touches on related political dynamics in Nigeria and economic partnerships in Rwanda and Gabon.