Complex sentence: These impediments to access spurred the Center to reevaluate its mission in 1997; attempting to be first and foremost, a resource for scholars of Palestinian history, was deemed unfeasible considering the restrictions on movement and access.
Split into simpler sentences: These impediments to access spurred the Center to reevaluate its mission in 1997. Attempting to be, first and foremost, a resource for scholars of Palestinian history, was deemed unfeasible considering the restrictions on movement and access.