For more than 500 years, Leonardo da Vinci has been admired as a brilliant artist, inventor, and thinker whose talents seemed far ahead of his time. Now, an ambitious international effort known as the Leonardo DNA Project is bringing scientists closer than ever to uncovering the biological roots of his genius. A newly published book, "Genìa Da Vinci. Genealogy and Genetics for Leonardo's DNA," brings together three decades of research led by Alessandro Vezzosi and Agnese Sabato of the Leonardo Da Vinci Heritage Association in Vinci. Supported by the Municipality of Vinci, the work reconstructs an extensive family tree stretching back to 1331. It spans 21 generations and includes more than 400 individuals, creating the foundation for an unprecedented attempt to rebuild Leonardo's genetic profile. By carefully studying archival records and historical documents, the researchers were able to map out previously unknown branches of Leonardo's family.…