What was the first scientific textbook on human anatomy?

It is a work titled On the Structure of the Human Body, written by Belgian physician and professor Andreas Vesalius (1514-1564) and published in 1543, when he was in his late twenties. Like other anatomists during the Renaissance (1350-1600), Vesalius conducted numerous dissections of human cadavers. Publishing his findings and drawings, his textbook soon became the authoritative reference, overturning the works of Greek physician Galen (129-c. 199).

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