Al Farabi(died in 950) a lecture by Dr Yarman (404)

 Al Farabi died in 950 and was born in Khorasan( Iran, Afghanistan central Asia) He spent most of his life in Baghdad. He was a Jurist, a scientist, mathematician, a physicist a philosopher in other words a polymath. He wrote on philosophy, ethics and many other subjects. 

Here is a lecture on Al Farabi delivered at Catholic University of America in Washington by professor Yarm of Feiberg University in Germany.

https://www.youtube.com/watch?v=9neJXAqt8Tw&t=353s