One of the most imposing of all the spectacles and celebrations which Claudius instituted during his reign, was the one which signalized the opening of the canal by which the Fucine lake was drained. The Fucine lake was a large but shallow body of water, at the foot of the Appenines, near the sources of the Tiber.[A] It was subject to periodic inundations, by which the surrounding lands were submerged. An engineer had offered to drain the lake, in consideration of receiving for his pay the lands which would be laid dry by the operation. But Claudius, who seemed to have quite a taste for such undertakings, preferred to accomplish the work himself. The canal by which the water should be conveyed away, was to be formed in part by a deep cut, and partly by a tunnel through a mountain; and inasmuch as in those days the power now chiefly relied upon for making such excavations, namely, the explosive force of gunpowder, was not known, any extensive working in solid rock was an operation of immense labor. When the canal was finished, Claudius determined to institute a grand celebration to signalize the opening of it for drawing off the water; and as he could not safely rely on the hydraulic interest of the spectacle for drawing such a concourse to the spot as he wished to see there, he concluded to add to the entertainment a show more suited to the taste and habits of the times. He made arrangements accordingly for having a naval battle fought upon the lake, for the amusement of the spectators, just before the opening of the canal, which was to draw off the water. Thus the battle was to be the closing scene, in which the history and existence of the lake were to be terminated forever. [Footnote A: See Map. Frontispiece.]