APRIL 1865: The Month That Saved America, Jay Winik, HarperCollins, NY, 2001, 461 pages, $32.50.
Jay Winik rightly argues that April 1865 was an essential cornerstone in American history. With maybe a touch of hyperbole, he asserts that April was "perhaps the most . . . crucial month . . . in the life of the United States." Civil War scholars certainly would agree that the events of that April were essential, but whether they could be considered the most decisive in the history of the Republic is another matter. Historians could reasonably argue that July 1776, October 1781 (the surrender at Yorktown), or even July 1863 with Union victories at Vicksburg and Gettysburg were as …