I realize that this is not "within the last 50 years" - but here are some thoughts.
What is the purpose of a thread like this? I think it's obvious.
Second - no modern achievements can stand alone. They did not occur in a vacuum and every great discovery or invention is built upon the achievements of earlier people. Threads like these seem designed to demean and diminish the true magnitude of those achievements and of course, of those people.
Has the Arab world contributed much to scientific advances in the last 50 years? Not so much, and that very issue is the cause of a certain amount of soul searching in the Islamic community. Many Arab scientists have ended up immigrating to other countries where their research has flourished under sponsorship.
Here is a good article, worth reading because it adds depth to what is otherwise rather shallow.
Saudi Aramco World Rediscovering Arabic Science