When the term genius is used these days, almost invariably it is applied to a student of mathematics or the sciences, an Albert Einstein, Francis Crick, or Alan Turing. Most assuredly, these individuals are geniuses of the highest order. Steven Runciman is a genius of a different kind, a genius of the liberal arts.
In order to understand the greatness of Runciman, one might start by looking at the appendices of his Crusades, in which he lists the principal sources for his history. There are Greek, Latin, Arabic, Armenian, and Syriac sources. These are just the principal sources. Runciman’s history also integrates the work of modern historians writing in languages as diverse as English, French, Italian, German, and Russian. The Wikipedia article on Runciman states:
"It is said that he was reading Latin and Greek by age five. In the course of his long life he would master an astonishing number of languages, so that, for example, when writing about the Middle East, he relied not only on accounts in Latin and Greek and the Western vernaculars, but consulted Arabic, Turkish, Persian, Hebrew, Syriac, Armenian and Georgian sources as well."
In brief, Runciman was a genius at learning languages, both living and dead. He reminds us that the study of the liberal arts begins with the study of language. It is not possible to be a serious student of the liberal arts without being a serious student of languages.
But, it would be a slight and an insult to Runciman to label him as "just" a genius of languages. His command of the geographical, ethnic, political, religious, military, artistic, architectural, and economic factors in the patchwork that was Europe and the Middle East at the end of the first millennium is breathtaking. That is, Runciman's mastery of many languages enabled him to become a master of history, too.
As a historian, Runciman reminds us why the Middle East is such a complicated (and fascinating) place, a region where waves of Persian, Jewish, Greek, Latin, Byzantine, Arabic, Turkish, Islamic (Sunni and Shiite), Christian (Orthodox, Monophysite, and Nestorian), Armenian, Mongol, and European (Frankish, German, Italian, Norman) influences (and armies) have washed over the land at various times with various effects. We come away from his history convinced that there are no easy answers, that all attempts to cut the Gordian knot of the Middle East are in vain. Many of the forces that shape the Middle East of today are the same forces that have been in play, implacably, for centuries and they will remain in play for centuries to come. It is through the work of great historians, polyglots, and masters of the liberal arts like Steven Runciman that we begin to develop a balanced understanding of the histories and cultures of these forces, both their admirable and their detestable manifestations. And it is for this reason that the study of history, language, and the other liberal arts remain essential parts of our society today.