Nothing can possibly accompany a silent captioned picture of Arlington, so I publish this separately and for your reflection at your leisure and as with all things only if you wish.
But for those of an historic bent, the tradition of annually setting aside a day to honor those fallen in war goes back at least to the Greeks. Thucydides recorded in his History of the Peloponnesian War that Pericles was chosen to give the annual funeral oration after the first year of that War. Here’s an excerpt.
