Four years have come and gone since first you asked me to write a Story of the United States "lest you should grow up knowing nothing of your own country." I think, however, that you are not yet very grown up, not yet too "proud and great" to read my book. But I hope that you know something already of the history of your own country. For, after all, you know, this is only a play book. It is not a book which you need knit your brows over, or in which you will find pages of facts, or politic...