Events which become historical, says Michael Kraus, do not live on because of their mere occurrence. They survive when writers re-create them and thus preserve for posterity their otherwise fleeting existence. Paul Revere's ride, for example, might well have vanished from the records had not Longfellow snatched it from approaching oblivion and given it a dramatic spot in American history. Now Revere rides on in spirited passages in our history books...