When Was Galen Proven Wrong?
When Was Galen Proven Wrong? 1242, when Ibn al-Nafis published his book Sharh Tashrih al-Qanun li’ Ibn Sina (Commentary on Anatomy in Avicenna’s Canon), in which he reported his discovery of pulmonary circulation, proving Galen completely wrong. Who disproved Galen? In the 17th century, English doctor William Harvey tore down theories that had been popular