It is probable that these structures were connected with primitive forms of worship, but Sir Norman Lockyer has endeavoured to show, in one of the most fascinating chapters of archaeological research, that the circles and avenues, and the monoliths or menhirs connected with them, were in all probability set up as rough astronomical instruments for observing the rising of the sun or of particular stars, in order to regulate the true length of the year. It is even possible, he contends, to form some idea of the date of their erection. Thus the two avenues at Merivale were probably laid out at different times, one about 1610 B.C., and the other about 1420 B.C., in order to watch the sunrise in May, which was then regarded as the first month of the year; while the avenues at Challacombe, among the most remarkable of all the monuments, are probably of far older date, perhaps 3500 B.C., and seem to have been arranged for the observation of sunrise in November, a month long accepted by some Celtic tribes as marking the beginning of the year.
Kistvaens, of which nearly 100 have been found, almost all of them on Dartmoor, are small stone burial chambers, generally used for the reception of the burnt ashes of the dead, probably in many instances originally covered with earth, and made of four slabs of granite set on edge, forming a sort of vault, with another and more massive stone laid on the top. Specially good examples have been found at Fernworthy, on Lakehead Hill, and at Plymouth. The most remarkable kistvaen—belonging, however, to a later period, when burial had displaced cremation—was that discovered on Lundy, containing a human skeleton eight feet two inches in length.
Tumuli or burial mounds, called cairns when they are made of small stones, and barrows when they are merely piles of earth, are to be seen in all parts of Devonshire, especially on high ground, sometimes alone, sometimes in groups of from two to ten or twelve, and always round. No long barrows have been discovered in the county.
The men of the Bronze Age reached a much higher stage of civilisation than their stone-using predecessors, and very fine examples of their bronze swords, daggers, spear-heads and axes; of their pottery, some of it finely decorated; and of their ornaments, including beads of shale and clay and amber, and an amber dagger-hilt with studs of gold, have been found at various places in Devonshire.
Relics that can be attributed with certainty to the prehistoric Iron Age are rare, partly, no doubt, because iron so quickly rusts away. Some very remarkable remains of this period were however found on Stamford Hill near Plymouth, during the construction of a fort, when the workmen dug into an ancient burial-ground, in which, in addition to human bones, were discovered red, black, and yellow pottery, mirrors and finger rings of bronze, fragments of beautiful amber-tinted glass, and some much-corroded cutting-instruments of iron. In the old camp called Holne Chase Castle, a man digging out a rabbit came upon about a dozen bars of rusty iron, two feet long, nearly two inches broad, and a quarter of an inch thick, which although at first mistaken, as has been the case elsewhere, for unfinished sword-blades, were subsequently identified as specimens of the iron currency-bars which passed as money among the ancient Britons. British coins of gold, silver, and copper have been found in several places, particularly at Exeter and at Mount Batten near Plymouth. The commonest are of what is known as the Channel Islands type, bearing the effigy of a horse rudely imitated from the Macedonian stater, and probably struck about 200 B.C.
A special feature of the prehistoric antiquities of Devonshire is the great number of camps or hill-forts, of which there are more than 140; some in the heart of the county, some on the coast, often on prominent headlands, and some along the lines of division between this and the adjoining shires; showing in many instances great military skill and knowledge both in construction and in the choice of good, defensive sites. Two of the most remarkable of the many strongholds, both near Honiton, are the great encampment of Dumpdon and the magnificently planned fortress of Hembury—a monument of military skill. Another fine example is Hawkesdown, the strongest of the chain of border forts—of which Membury and Musbury are two important links—built along the river Axe as defences against the ancient inhabitants of Dorsetshire. One of the largest and most elaborate of all is Clovelly Dykes, twenty acres in extent, and defended by from three to five lines of intricate earthworks. Another remarkable fort, and the largest in the county, is Milber Down, two miles south-east of Newton Abbot.
Bronze Centaur forming the Head of a Roman Standard
(Found at Sidmouth)
There is no real clue to the makers of these fortresses. Roman coins have been found in several of them, but there is not one which competent authorities attribute to the Romans, and it is probable that they were built by British tribes during the ages of Bronze and of Iron, but perhaps chiefly by the Gaels or Goidels. A few of them have played a part in modern history. Cadbury, for instance, was occupied by Fairfax in 1645; and in 1688 the Prince of Orange parked his artillery in the great fort of Milber Down, a camp which it is thought was not only occupied but adapted by the Romans.