Air Exchange Quotes



Ala-al-Din Abu al-Hasan Ali Ibn Abi al-Hazm al-Qarshi al-Dimashqi. The Western Scientist first credited with describing the circulation of blood through the body and showing that Galen erred was William Harvey in 1628, almost 4 centuries later. One theory as to why it took the Christian world so long was that Galen was held in great reverence and Christianity discouraged original thinking and writing which could cost a scientist his life. At the time (the 13th century) the Islamic world was intellectually more liberal and there was no establishment or Islamic vested interest in Galen or his theories.