Completed the following sentence: In 1687, the Parthenon was extensively damaged in the greatest catastrophe to befall it in its long history. <unk> <unk> <unk>
1699), the Venetians sent an expedition led by Francesco Morosini to attack Athens and capture the Acropolis. The Ottoman Turks fortified the Acropolis and used the Parthenon as a gunpowder magazine<unk> despite having been forewarned of the dangers of this use by the 1656 explosion that severely damaged the Propylaea<unk> and as a shelter for members of the local Turkish community.