Nuclear activity in galaxies and development of astronomy in Ethiopia and East-Africa

In this talk we summarised some of the research that is currently (and for the very first time) going on in Ethiopia and East-African region regarding the physics of active galaxies. This research is focused on the following questions: what are the stellar ages and populations of ultra hard X-ray detected AGN and connection between AGN and their host galaxies?, what are the morphological properties of AGN and how precisely we can deal with morphological classification of active galaxies?, what are the properties of radio-loud and radio-quiet quasars (QSO) and dichotomy between the two?, what are the properties of AGN in galaxy clusters and the role that environment has in triggering nuclear activity?, what are the properties of galaxies in the green valley and role of AGN in galaxy evolution?, and how are variability and micro-variability properties of nearby active galaxies?. Each of these questions has been developed under one specific project that has been briefly introduced. With all projects we aim, on one side, to contribute with our research to the general knowledge about AGN, and on the other, to contribute to the development of astronomy, institutional development, and human capacity building in Ethiopia and Africa.