A significant anniversary has just passed us by, and if there was any mention of it in the press, I missed it. It's probably too late to hang up bunting and arrange for a parade to mark an event that happened 200 years ago last month, but surely it is always timely to relearn a bit of instructive history. And, notwithstanding Santayana's too-often repeated mot about forgetfulness and history repeating, it is sometimes possible to see in such repetition not error or futility but constancy. ... The Tripolitan War may well be counted the first instance of America's stepping forth...