Byron was a rapid as well as a voluminous writer. His _Tales_ were thrown off at lightning speed, and even his dramas were thought out and worked through with unhesitating energy and rapid achievement. Nevertheless, the composition of his two great poems was all but coextensive with his poetical life. He began the first canto of _Childe Harold_ in the autumn of 1809, and he did not complete the fourth canto till the spring of 1818. He began the first canto of _Don Juan_ in the autumn of 1818, and he was still at work on a seventeenth canto in the spring of 1823. Both poems were issued in parts, and with long intervals of unequal duration between the parts; but the same result was brought about by different causes and produced a dissimilar effect. _Childe Harold_ consists of three distinct poems descriptive of three successive travels or journeys in foreign lands. The adventures of the hero are but the pretext for the shifting of the diorama; whereas in _Don Juan_ the story is continuous, and the scenery is exhibited as a background for the dramatic evolution of the personality of the hero. _Childe Harold_ came out at intervals, because there were periods when the author was stationary; but the interruptions in the composition and publication of _Don Juan_ were due to the disapproval and discouragement of friends, and the very natural hesitation and procrastination of the publisher. Canto I. was written in September, 1818; Canto II. in December-January, 1818-1819. Both cantos were published on July 15, 1819. Cantos III., IV. were written in the winter of 1819-1820; Canto V., after an interval of nine months, in October-November, 1820, but the publication of Cantos III., IV., V. was delayed till August 8, 1821. The next interval was longer still, but it was the last. In June, 1822, Byron began to work at a sixth, and by the end of March, 1823, he had completed a sixteenth canto. But the publication of these later cantos, which had been declined by Murray, and were finally entrusted to John Hunt, was spread over a period of several months. Cantos VI., VII., VIII., with a Preface, were published July 15; Cantos IX., X., XI, August 29; Cantos XII., XIII., XIV., December 17, 1823; and, finally, Cantos XV., XVI., March 26, 1824. The composition of _Don Juan_, considered as a whole, synchronized with the composition of all the dramas (except _Manfred_) and the following poems: _The Prophecy of Dante_, (the translation of) _The Morgante Maggiore, The Vision of Judgment, The Age of Bronze_, and _The Island_.