Jakarta (Indonesia Window) – The King Abdulaziz Public Library in Saudi Arabia’s capital city of Riyadh has found one of the rarest human anatomy manuscripts dating from the 14th century.

The book, titled The Anatomy of the Human Body, is the earliest known book to dissect and draw the inside of the human body, and was written by Mansur bin Mohammed bin Ahmed bin Yusuf bin Ilias Al-Kashmiri between 1380 and 1391, Arab News reported.

The book is one of the most precious Islamic medical manuscripts. It preceded the modern anatomy of the Belgian physician Andreas Vesalius and the Italian painter Leonardo da Vinci.

European scientists learnt from the book’s drawings and manuscripts and made anatomy a part of their recognized medical education. The illustrations, drawn with pen and inks of different colors, present the entire human body, with each drawing taking a whole page.

The drawings demonstrate great craftsmanship in their use of lines and colors. They utilized the art of the Islamic miniatures, which was standard at the time the book was written, and were drawn with no tools other than pens.

The chapters cover the bones, nerves, muscles, veins, arteries, face, nose, liver and other organs of the human body, with the author writing in detail about the functions of the arteries and describing the veins as mobile veins that emerge from the left and right ventricles of the heart, where the diastole and systole occur.

The book, written in Persian, was transcribed by a scribe named Mohammed Hassan on Dec. 16, 1707.

Reporting by Indonesia Window