From it's humble beginnings as a Bronze Age pagan town, Jerusalem has been fought over for centuries. It was mostly fought over between the Muslim Caliphate and the Christian Byzantine Empire. It is also interesting to note that only under Muslim rule did Jews have freedom of worship in the city.
UN: Gaza could be 'uninhabitable' by 2020 if trends continue (AP)
from the article: Netanyahu: Abbas speech on Jerusalem was 'incitement'