A collection of texts found by this body of water includes the so-called “Passover Letter,” (-5[2])which (-5[1])provides (-5[2])instructions (10[1])for (-5[1])observing the Festival of (-5[1])Unleavened Bread. (-5[1])An ancient ruler from Thinis (-5[1])is thought to have conquered this body of water’s (10[1]-5[1])Naqada III archeological culture. (10[1])A siltstone (10[1])tablet depicts (-5[1])a ruler of this (10[1])river preparing to strike a kneeling captive (10[1]-5[1])with a (10[1])mace. (10[2])A namesake ruler of this river is depicted with a dual crown on that tablet, (10[5])the Narmer (10[3])Palette. (10[4])An enormous cache of ancient (10[1])Aramaic documents was discovered on this river’s Elephantine Island. The pith of one plant (10[1])that primarily grew along this river (10[1])could be compressed to create mats and scrolls. (10[1])For 10 points, the annual flooding of what river (10[1])allowed (10[1])for the cultivation of papyrus (10[1])in ancient Egypt? ■END■ (10[5])