The three historic ages overlap each other—Division of the iron age by archæologists—Gradual development in the mode of burial during the three ages—Appearance of silver, lead, and glass—Greek and Roman objects—Cinerary deposits—Cremation—The Kannikegaard cemetery—Primitive kettle-shaped graves—Intentional destruction of weapons and armour in graves—Cinerary urns—Symbolic signs—Ornaments of the iron age. In the iron age, when the knowledge of all the metals was known, and weapons were made of iron, bones were still sometimes used for arrow-heads; this age gradually merges into the historic period. It is impossible to assign definite limits of time to the three prehistoric ages; they run by degrees into each other; the classification specifies no division of time, but marks degrees of development in man. Northern archæologists divide the iron age in the North into the _earlier_, _middle_, and _later_ iron age, in the same manner as they have divided the preceding stone and bronze ages; and it may safely be said that in all these ages the North surpasses other countries in the beauty and number of its objects. All the antiquities, as well as the Eddas and Sagas, plainly show that the people who inhabited the eastern and southern shores of the present Scandinavia[118], the islands of the Baltic, and the southern shores of that sea, to a certain distance inland, which now comprise Northern Germany, were of the same origin and belonged to the same race; and the vast number of weapons of various kinds testify equally with the records to the warlike character of the people. The finish of the weapons of the later stone age is something wonderful, many of them are as polished as glass; the weapons of bronze are equally remarkable. In the beginning of the iron age appear the shears, which are very similar to those now in use. Clothes during this period were generally kept together by pins and buckles, which have been found in great numbers; horns were used as drinking cups, and domestic vessels of glass, bronze, silver, gold, wood, or burnt clay, and objects of Roman manufacture, dice, checkers or draughtsmen, and chessmen, have also been unearthed. At a very early period of this age remains of brynjas, or coats of ring armour, have been found in graves where burning of the dead has taken place; this shows that they were known in the North even in the beginning of the Christian era, if not before; they are also met with in graves of a later period, and in the bog finds of the third and fourth century. Along with iron the people became also acquainted with silver, lead, glass, &c., and knew the art of soldering and gilding metals. The jewels and ornaments in their design and workmanship show a considerable advance in taste.