Fifteen years ago, a couple of teenagers were out messing around near their homes in Jerusalem. They came upon an excavation site of an ancient battlefield that had been uncovered. When the boys saw a pile of perfectly round stones, one of them knew that he just had to have one, so he took one home with him. Turns out that the stone was more than a cool, round rock – it was a “ballista bolt.” Now a “ballista” was a weapon tha...
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