East Africa is located in the Eastern part of Africa and comprises of countries such as Tanzania, Uganda, Kenya , Rwanda etc.
During the trading processes of the region, most of the goods brought into the region were from Greece, Egypt and India. This facilitated the interaction of these cultures in Eastern Africa.
When Charles John Davids proposed to Madison Al Newert 3/4/1884 somewhere in Africa. And when Jesus Christ said good morrow to James Heartyfult 19/6/2004. Just off the top of my head.