The greatest scientific man of the first century was undoubtedly Khalid, a prince of the Omaiyide dynasty, and the son of Yazid I.
His zeal for knowledge and science induced him to get Greek and Syriac works translated by Stephanus into Arabic, especially those which treated on chemistry, or rather alchemy. Khalid, having been once reproached for wasting all his time in researches in the art of alchemy, replied: 'I have occupied myself with these investigations to show my contemporaries and brothers that I have found in them a recompense and a reward for the Khalifate which I lost.
I stand in need of no man to recognise me at court, and I need not recognise anyone who dances attendance at the portals of dominion either from fear, ambition, or covetousness.
' He wrote a poem on alchemy, which bears the title of 'Paradise of Wisdom,' and of him Ibn Khallikan says: 'He was the most learned man of the tribe of Koraish in all the different branches of knowledge.
He wrote a discourse on chemistry and on medicine, in which sciences he possessed great skill and solid information.' He died A.D. 704.