The title of emperor was passed through successors. While teaching history we should familiarize ourselves with the political systems of Rome. We should appreciate the complexity and evolution of the systems that held Rome together for such a long time. More
The most ancient lineage in the world is the Ethiopian Royal Family. It is older than that of the Japanese and English royal family by 6000 years. Emperor Haile Sellasie traces his ancestry to King Solomon of Isreal and the black Queen of Sheba and beyond that to Kush/Nubia/Egypt 7000 BCE.