Kingdom of Hadhramaut (violet) in the 3rd century CE during the Sabaean-Himyarite war, it was eventually annexed by the Himyarite Kingdom.
Location of the Heart. Heart is located safely inside the chest cavity which looks like a cage bound by the ribs and breast bone (sternum). The chest cavity is also called as thoracic cavity and it lies between neck and abdomen.
Sternum Pain. Sternum pain or breastbone pain can be caused due to a variety of reasons. Sternum, commonly known as breastbone is a flat bone that is located in the centre of your chest directly below the collar bone. You can easily locate whether the breastbone pain is indeed in the region of the sternum, by tracing the sternum in the centre as it is connected to your ribs with cartilage.