According to the Wikipedia article, foreign including English students and scholars were expelled from the University of Paris in 1167 due to the unknown trouble condition. English scholars came back to England and founded The University of Oxford to continue their work.
There was another unrest between the locals of Oxford and the students at The University of Oxford in 1209 which also lead some students and scholars of Oxford University going away from Oxford to Cambridge England and they found The University of Cambridge there.
I pray that the current unrest in Pakistan end with Prosperity, Security and Peace in the country.