The ancient Greek name of what is now called the straits of The Dardanelles, the channel which unites the Sea of Marmora with the Ægean. The name (Sea of Helle) came from the myth of Helle, who was said to have been drowned in these waters. HELLESPONTINE SIBYL. See SIBYLS. HELLULAND. See AMERICA: 10TH-11TH CENTURIES. HELOTS. See SPARTA: THE CITY. HELVECONES, The. See LYGIANS. {1642} HELVETIAN REPUBLIC, The. Switzerland is sometimes called the Helvetian Republic, for no better reason than is found in the fact that the country occupied by the Helvetii of Cæsar is embraced in the modern Swiss Confederacy. But the original confederation, out of which grew the federal republic of Switzerland, did not touch Helvetian ground. See SWITZERLAND: THE THREE FOREST CANTONS, and A. D. 1332-1460. HELVETIC REPUBLIC OF 1798, The. See SWITZERLAND: A. D. 1792-1798. HELVETII, The arrested migration of the. "The Helvetii, who inhabited a great part of modern Switzerland, had grown impatient of the narrow limits in which they were crowded together, and harassed at the same time by the encroachments of the advancing German tide. The Alps and Jura formed barriers to their diffusion on the south and west, and the population thus confined outgrew the scanty means of support afforded by its mountain valleys. … The Helvetii determined to force their way through the country of the Allobroges, and to trust either to arms or persuasion to obtain a passage through the [Roman] province and across the Rhone into the centre of Gaul. … Having completed their preparations, [they] appointed the 28th day of March [B. C. 58] for the meeting of their combined forces at the western outlet of the Lake Lemanus. The whole population of the assembled tribes amounted to 368,000 souls, including the women and children; the number that bore arms was 92,000. They cut themselves off from the means of retreat by giving ruthlessly to the flames every city and village of their land; twelve of one class and four hundred of the other were thus sacrificed, and with them all their superfluous stores, their furniture, arms and implements." When the news of this portentous movement reached Rome, Cæsar, then lately appointed to the government of the two Gauls, was raising levies, but had no force ready for the field. He flew to the scene in person, making the journey from Rome to Geneva in eight days. At Geneva, the frontier town of the conquered Allobroges, the Romans had a garrison, and Cæsar quickly gathered to that point the one legion stationed in the province. Breaking down the bridge which had spanned the river and constructing with characteristic energy a ditch and rampart from the outlet of the lake to the gorge of the Jura, he held the passage of the river with his single legion and forced the migratory horde to