The jews left Jerusalem after the Great Revolt or the First Jewish Roman War in 66 A.D.Before the war the there was tension between the jews and romans becuase of religion.Next the romans required the jews to pay a lot of taxes and then started to persecute jews. Finaly the jews had enough.they revolted against the roman empire.The Jews started anti-taxation protests.then they went too far by attacking roman citizens.the romans responded by tearing down the second temple and killing more than 6,000 Jews.The romans conqured Jerusalem and drove the Jews out.