While his predecessors and contemporaries used suppositions as much as facts, Lucius founded his estimates on genuine sources. At the end of the book, he included certain valuable historical sources and a bibliography with his comments. The book had six historical maps.
Unlike his predecessors and contemporaries who often used conjecture alongside factual evidence, Lucius relied solely on genuine sources for his estimations. Near the end of the text, he included several valuable historical references along with a bibliography of his comments. The book contained six historical maps.