Tradition says, and I think it is supported by the internal evidence of the poem, that he wrote the first seven cantos of the _Inferno_ in Florence before his exile, and that the beginning of the eighth canto:
is a proof that the poem was continued after having been laid aside for a time, otherwise the word "seguitando" would be unnecessary to the sense, and it is not in Dante's style to admit unnecessary words into his lines. If this reasoning hold good, we can determine pretty accurately the date of the _Divine Comedy._ The poet feigns that he descended into the infernal regions on Good Friday of the year 1300; his exile began in 1301; therefore, the latter part of 1300 very probably saw him write the first seven cantos of the work. In the sixth canto there is an allusion to his exile, and to the defeat of his party; but that may have been inserted afterwards.
Cruel was the blow that fell upon him, doubly cruel after so many years of prosperity and honour. He had to consort with unworthy companions; he had to eat the bitter bread of dependence; he was severed from those whom he loved most dearly; and, as he makes Cacciaguida foretell in Paradise, "this was the first arrow with which the bow of exile struck him."
"Tu lascerai ogni cosa diletta Più caramente; e questo è quello strale Che l'arco dell esilio pria saetta."
The reader may peruse in the seventeenth canto of the _Paradiso,_ his concise and pathetic account of the sorrows of his later years. Clad in the form of prophecy, it constitutes one of the grandest passages in the whole poem. Some letters, written during his exile, are still extant and breathe a spirit so lofty that versification alone is wanting to equal them to his sublimest inspirations. Amid all the troubles of his eventful life, he still found leisure to study, meditate, and write, and when he died in Ravenna in 1321, the first great poem of modern times was completed.
"Many volumes have been written," says Carlyle, "by way of commentary on Dante and his book; yet, on the whole, with no great result. His biography is, as it were, irrecoverably lost for us. An unimportant, wandering, sorrow-stricken man, not much note was taken of him while he lived; and the most of that has vanished, in the long space that now intervenes. It is five centuries since he ceased writing and living here. After all commentaries, the Book itself is mainly what we know of him. The Book, and one might add, that Portrait commonly attributed to Giotto, which, looking on it, you cannot help inclining to think genuine, whoever did it. To me it is a most touching face; perhaps of all faces that I know, the most so. Lonely there, painted as on vacancy, with the simple laurel wound round it; the deathless sorrow and pain, the known victory which is also deathless; significant of the whole history of Dante. I think it is the mournfullest face that ever was painted from reality; an altogether tragic, heart-affecting face. There is in it, as foundation of it, the softness, tenderness, gentle affection as of a child; but all this is as if congealed into sharp contradiction, into abnegation, isolation, proud, hopeless pain. A soft, ethereal soul, looking out so stern, implacable, grim, trenchant, as from imprisonment of thick-ribbed ice. Withal it is a silent pain, too, a silent, scornful one; the lip is curled in a kind of god-like disdain of the thing that is eating out his heart, as if it were withal a mean insignificant thing, as if he whom it had power to torture and strangle, were greater than it. The face of one wholly in protest, and life-long unsurrendering battle against the world. Affection all converted into indignation; slow, equable, silent, like that of a god. The eye, too, it looks out as in a kind of _surprise,_ a kind of inquiry, why the world was of such a sort? This is Dante, so he looks, this 'voice of ten silent centuries,' and sing us his 'mystic, unfathomable song.'"