One of the great questions of antiquity is what ancient knowledge might have been lost with the destruction of the famed Great Library of Alexandria. We can only guess at the answer, but the question itself reveals a fundamental misunderstanding of the library- what it was, where it was, why its was, and what happened to it.
In September, 1918, two desperate battles unfolded over two consecutive days between lightly armed American Naval vessels and the same German Submarine.