Practicing History_ Selected Essays - Barbara W. Tuchman [142]
Quantification is really only a new approach to the old persistent effort to make history fit a pattern, but reliable patterns, or what are otherwise called the lessons of history, remain elusive.
For instance, suppose Woodrow Wilson had not been President of the United States in 1914 but instead Theodore Roosevelt, who had been his opponent in the election of 1912. Had that been the case, America might have entered the war much earlier, perhaps at the time of the Lusitania in 1915, with possible shortening of the war and incalculable effects on history. Well, it happens that among the Anarchists in my book The Proud Tower is an obscure Italian named Miguel Angiolillo, whom nobody remembers but who shot dead Premier Canovas of Spain in 1897. Canovas was a strong man who was just about to succeed in quelling the rebels in Cuba when he was assassinated. Had he lived, there might have been no extended Cuban insurrection for Americans to get excited about, no Spanish-American War, no San Juan Hill, no Rough Riders, no Vice-Presidency for Theodore Roosevelt to enable him to succeed when another accident, another Anarchist, another unpredictable human being, killed McKinley. If Theodore had never been President, there would have been no third party in 1912 to split the Republicans, and Woodrow Wilson would not have been elected. The speculations from that point on are limitless. To me it is comforting rather than otherwise to feel that history is determined by the illogical human record and not by large immutable scientific laws beyond our power to deflect.
I know very little (a euphemism for “nothing”) about laboratory science, but I have the impression that conclusions are supposed to be logical; that is, from a given set of circumstances a predictable result should follow. The trouble is that in human behavior and history it is impossible to isolate or repeat a given set of circumstances. Complex human acts cannot be either reproduced or deliberately initiated—or counted upon like the phenomena of nature. The sun comes up every day. Tides are so obedient to schedule that a timetable for them can be printed like that for trains, though more reliable. In fact, tides and trains sharply illustrate my point: One depends on the moon and is certain; the other depends on man and is uncertain.
In the absence of dependable recurring circumstance, too much confidence cannot be placed on the lessons of history.
There are lessons, of course, and when people speak of learning from them, they have in mind, I think, two ways of applying past experience: One is to enable us to avoid past mistakes and to manage better in similar circumstances next time; the other is to enable us to anticipate a future course of events. (History