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.
Thymus cancers are uncommon. The thymus is a small organ located just behind the breast bone (sternum) in the front part of the chest. The thymus is in a part of the chest called the mediastinum, the space in the chest between the lungs that also contains the heart, part of the aorta, the esophagus (the tube that connects the mouth to the stomach), part of the trachea (windpipe), and many lymph nodes.