One cause to which may be ascribed the first erection of lake dwellings in Ireland was the original paucity of open country, for on the arrival of the first colonists (if credence is to be given to the early native annals) the only plain not covered with forest was the level district stretching between Dublin and Howth. This statement of the superabundance of forest is, to some extent, corroborated by the vast number of local names derived from Irish words signifying woods or timber of some description. However, the most probable cause of their erection was to serve as places of refuge, for these island homes would necessarily provide safety and protection; indeed such, in their later or historical existence, was undoubtedly the cause of their continuous occupation. It is quite obvious that in primitive times, especially, a habitation on water was of great security—more secure than could be a stockaded doon or fort.

Lake dwellings have been universally employed both in ancient and modern times: similar physical surroundings originated practically the same style of structures amongst far distant and even ocean-separated tribes. “Man is moulded to a remarkable degree, physically as well as mentally, by manner of living, food, and climate. Among barbarous nations,” says Humboldt, “we find a tribal, rather than an individual physiognomy; there are no varieties of intellectual development to stamp the face with diversity of character: thus the slave-dealers in Upper Egypt never ask for the individual character of a slave; they only inquire where he was born, his character being that of his tribe.”

Let us now, like Puck,

“Put a girdle round about the earth,”

and inspect these habitations for ourselves. Ancient classical writers are not altogether silent on the subject. Hippocrates, who lived upwards of 400 years B.C., when describing the manner of life of the inhabitants of Phasis, a region of the Black Sea, says that the country was fenny and wooded, the climate warm and humid; but despite these disadvantages, the natives lived entirely in the swamps, “for their dwellings are constructed of wood and reeds, and are erected amidst the waters.” He adds that they seldom practise walking, either in the city or the market, but sail up and down in canoes constructed out of single trees, for there are many canals there.[9]

An account is given by Herodotus of the abode of a Thracian tribe, the Pæonians, who lived on Lake Prasias, now Lake Takinos, situated in the country known in the present day as Roumelia. The habitations of this tribe were reared on platforms, raised on piles above the water, and connected with the shore by a narrow causeway of similar formation. This tribe successfully resisted the attack of a Persian army under the satrap Myabyzus. The Father of History thus describes this settlement:—“The habitations on the lake of Prasias are of this nature—floors laid on lofty poles stand in the middle of the lake,[10] with a narrow entrance by one bridge from the mainland. All the inhabitants used to drive, at their common expense, the piles that served to support the floors. Subsequently they have adopted the following regulation: for every woman a man marries he is to drive three piles, which they procure from a mountain called Orbelus. Now, every man takes several wives. They dwell here in the following manner: each has a hut in which he lives, and a trap-door in the floor opening down to the water. To their horses and draught cattle they give as fodder fish, of which there is such an abundance that when one opens his trap-door, and lets down his empty basket into the lake by a cord, after waiting only a short time, he hauls it up full of fish.”[11] The fishermen of this lake still continue, as in the time of Herodotus, to inhabit huts built over the water.[12]

In Layard’s work, descriptive of the discoveries on the site of Nineveh, there is an engraving of a bas-relief from the palace of Sennacherib, which represents an artificial island, apparently formed by weaving together the tall reeds that grew on the banks of the Euphrates; and a prehistoric age is indicated by the dwellings which existed in the Gocktscha lake in Armenia.

It is certain that lake dwellings were used as places of permanent abode. Remains of such works of ancient date are, on the continent of Europe, by no means confined to the area of Switzerland, to which country they were for some time popularly supposed to belong exclusively; they have been found in Savoy, in the north of Italy, Würtemberg, Bavaria, Austria (Carinthia), Hungary, Mecklenburg, Denmark, Pomerania, Brandenburg, and also in France. If dependence can be placed on remains found in these numerous and widely-distributed sites, many of them would appear to have been occupied so late as the period of the Romans; and the silence of their historians on the subject is therefore singular, as in general the characteristic traits of the tribes with which the Roman legions came in contact were depicted with remarkable fidelity.

In Switzerland, during the year 1829, an excavation was made on the shore at Ober Meilen, on the lake of Zurich, for the purpose of deepening the harbour; and although piles and other antiquities were then discovered, they appear to have attracted no attention. So matters stood till the winter of 1853-4, when an extraordinary drought and long-continued frost caused the lakes to sink to a level never before known. This circumstance presented great facilities for the reclamation of land along the shores, and the inhabitants of Ober Meilen proceeded to rescue from the water some of the land thus temporarily exposed. When making excavations to form an embankment, they came upon a net-work of wooden piles, a great number of stags’ horns, and various implements, only two of which were of bronze. The discovery of this settlement aroused peculiar interest, not merely on account of its being apparently the first recorded, but because it evidently belonged almost exclusively to the stone age. Similar structures were immediately after discovered in almost all the lakes of Switzerland, the favourite site being a sunny sheltered bay, with soft and gently-shelving bottom. They were of three classes—first, pile dwellings: the piles, sometimes 30 feet in length, were driven into the bottom of the lake, and occasionally further strengthened by the deposit of stones around their base: these constructions always occur in deep water. Secondly, frame pile dwellings, in which the piles, instead of being driven into the mud, were fixed by a mortise and tenon arrangement into split trunks lying horizontally along the bottom of the lake. Thirdly, fascine dwellings, formed by layers of fagots, alternating with brushwood, clay, gravel, and stones, one over the other, till the top reached the required level above the surface of the water; piles were driven in around to bind the heap together, and the whole overlaid by a wooden floor, upon which the dwellings were erected.