The humane, and I hope I may be counted among the number, have long wished that some milder arbitrament than that of arms might intervene to settle the disagreements of men. No such arbitrament has as yet come into being. We settle our disputes in this way, and history must record the struggles, however reluctantly. As an historical writer, it has been my function to deal with times of conflict in various periods and lands. When I was seventy years old I began writing a history of our Civil War. To have at hand the literature of the period I went to Washington, where the most kind officials of the Library of Congress assigned to me a roomy alcove in the north curtain with a desk and ample surrounding shelves. These were filled for me by expert hands with whatever I might require for my task, and a screen shut off my corner from the corridor through which at times perambulated Roosevelt, and other secluded delvers, intent on early Gaelic literature and what not. Here I spent the most of two years, finding it an ideal spot, but my task required more than an examination, under the quiet light of my great window, of books and documents. The fields themselves must also be surveyed, so I travelled far until I had visited the scene of nearly every important conflict and traced the lines of march in the great campaigns. I was already a haunter of old battle-fields, that thread of heredity, from a line of forbears very martial in their humble way, asserting itself in whatever lands I wandered. I had been at Hastings, and had traced the Ironsides to Marston Moor and Naseby. I had stood by the _Schweden-Stein_ at Lützen, and tramped the sod of Leipsic and Waterloo. It was for me now to see our own fields of decision, fields ennobled by a courage as great and a purpose as high as soldiers have ever shown.