A weekly round-up of stories from across the continent with Georja Calvin-Smith.  African scholars update a monumental book that sets out the continent's global contribution across thousands of years.  Also, South Africa's household help sector is in a mess. About 400,000 jobs have disappeared in the sector over the last 5 years. And reports mount of the brutal treatment of civilians caught in the middle of the RSF's battle to seize the Darfuri city of El Fasher from the army.