Edited sentence: Establishing the presence is in part found upon showing actual physical/hereditary connections (the family tree) between ancient ancestors and their descendants.Genealogical primarily indicates biological relationship; bood-based kinship, ancestral heredity.It emphasized group interrelations over against individual relationships.It was used for different purposes including political, legal, domestic, and religious purposes.The linear genealogy gives a single (1) line of descent from an ancestor.The segmented genealogy, of which Genesis 10 is one, describes more than one (1) line of descent from an ancestor.Their are two type of genealogies found in ancient literature