A greater luminary in Toynbee’s “Pleiad” of captured or exiled historians (last post).
Thucydides (vivebat circa 454-399 B.C.) was a citizen of Athens who lived through the Twenty-Seven Years’ War of 431-404 B.C., and who was overtaken by the outbreak of the war in his early manhood. He thus belonged to a generation which was just old enough to have known the pre-war Hellenic World as an adult member of the pre-war society; and at the same time he lived long enough to see the denouement of the great catastrophe that brought the growth of the Hellenic Civilization to an end and set in motion the long and tragic movement of decline and fall. The definite breakdown of the Hellenic Civilization was, in fact, the challenge which the generation of Thucydides had to encounter and the experience through which they had to live; and Thucydides was fully alive to the significance of the catastrophe. “This war”, he says in the preface to the first part of his work, [footnote: Thucydides’ History of the Twenty-Seven Years’ War is in two parts, each introduced by a preface. […] Part II is unfinished. (The work was apparently interrupted by the author’s death.) The narrative breaks on abruptly in the middle of the record of the twenty-first year of the war (411 B.C.) out of the total of twenty-seven years (431-404 B.C.) which the author intended to cover.] “was … the greatest upheaval ever experienced by Hellas and by a part of the non-Hellenic World (it would hardly be an exaggeration to say: by the Human Race)”; and he informs his readers in the same passage that, “in the belief that this war would eclipse all its predecessors in importance, he began to write as soon as war broke out”. In the Athens, however, of Thucydides’ day an able-bodied adult male citizen was constrained in peace-time, and a fortiori in war-time, to devote the best part of his time and energy to public service if the State made the demand; and we may suppose that, as soon as war broke out, this “practical” demand upon Thucydides became exacting. At any rate, in the eighth year of the war, we find Thucydides serving as one of the ten Athenian Generals: a board of public officers, elected annually for a twelve months’ term, who exercised the chief executive authority in the civil government in addition to their command over military operations.
It was in this position of “practical” responsibility, which Thucydides held in 424-423 B.C., that he suffered the break in his career which was the turning-point in his life-history. In the winter of 424-423 B.C., when Thucydides was in command of an Athenian naval squadron stationed at Thasos [north Aegean], he failed to prevent a Lacedaemonian expeditionary force commanded by Brasidas from capturing Amphipolis [Thracian mainland]. The lost fortress was a key-position, since it commanded the passage across the River Strymon on the land-route leading from Continental Greece towards the Dardanelles: the only route along which it was possible for the Peloponnesians to strike, with their superior land-power, at a vital point in the Athenian Empire, so long as Athens retained her command of the sea. The Athenian People sought relief for their feelings of chagrin and alarm at the news of this reverse by cashiering Thucydides and sentencing him to exile. And it was thanks to this personal mishap to Thucydides the soldier that Thucydides the historian at last obtained the opportunity to accomplish his life-work.
He never returned to Athens. Where did he live?
“I lived”, he writes in the preface to the second part of his work, “through the whole of [the Twenty-Seven Years’ War] [bracket in original], and I was not only of an age of discretion, but I took special pains to acquire accurate information. It was my fate to be exiled from my country for twenty years after my command at Amphipolis; and in this situation I was enabled to see something of both sides – the Peloponnesian as well as the Athenian – and to make a special study of the War at my leisure.”
Thanks to this fortunate misfortune, Thucydides was able to complete rather more than two-thirds of his projected work, though he seems to have died a premature death before he was out of his fifties. What is more, he has triumphantly achieved his ambition, declared in the preface to the first part of the work, to produce “an everlasting possession” – a permanent contribution to knowledge – “rather than an ephemeral tour de force”. In his own austere intellectual way, this cashiered Athenian officer has anticipated the injunction
“Lay not up for yourselves treasures upon Earth, where moth and rust doth corrupt, and where thieves break through and steal;
“But lay up for yourselves treasures in Heaven, where neither moth nor rust doth corrupt, and where thieves do not break through nor steal;
“For where your treasure is, there will your heart be also.” [Footnote: Matt. vi. 19-21.]
The passing agony of one unhappy generation of Hellenes who dealt their own Hellas a mortal blow and knew that her blood was on them and on their children has been transmuted by Thucydides, in a great work of art, into an ageless and deathless human experience.
A Study of History, Vol III, OUP, 1934