The Scandinavian gods were worshipped in spacious temples, or on stone heaps or altars. These sacred places were always near a consecrated grove or tree and a sacred fountain. Human sacrifices were not uncommon at times of public calamities, such as war, disease, or famine. Three great festivals were held every year, the first of which was celebrated at the new year, in the Yule-month. On these occasions offerings were made to Odin for success in war, and to Freyr for a peaceful year. The chief victim was a hog, which was sacrificed to the latter god, on account of swine having first instructed man to plough the soil. Feasting and games occupied the whole month, therefore it was called the Merry Month. Yule continues to be observed in several places at the present time, and points to the custom of sun worship and the adoration of the early gods of the north. The frumenty eaten on Christmas eve or morning in England, and the sowans in Scotland, seem to be imitations of the offerings paid to Hulda or Berchta, to whom the people looked for new stores of grain. The second festival was in mid-winter, and the third in spring, when Odin was chiefly invoked for prosperity and victory.
The mythology of the Scandinavians and our ancestors was in many respects similar. It was from the principal gods of the northern nations that the names of the days of our week were taken, as will appear under the observations we shall make on the Calendar. But in addition to the chief gods there were inferior deities, who were supposed to have been translated to heaven for their great deeds, and whose greatest happiness consisted in drinking ale out of the skulls of their enemies in the hall of Wodin. The Norsemen delight to recount the exploits of their ancient gods and goddesses and celebrated mythical persons. The Volsung Tale is often referred to with pleasure. Volsung, a descendant of Odin, was taken from his mother's womb by a surgical operation, after six years' bearing. In his hall grew an oak, whose branches spread out in every direction. In that hall, when Volsung's daughter was to be given away to Siggeir, king of Gothland, in came an old guest with one eye. In his hand he held a sword, which at one stroke he drove up to the hilt in the oak. "Let him," said he, "of this company who can pull it out, bear it, and none shall say he bore a better blade." Having said this, he disappeared, and was seen no more. Many tried to possess himself of the sword, but none could draw it from the oak, till Sigmund, the bravest of Volsung's sons, laid his hand upon its hilt. At his touch, it freed itself from the mighty oak; and the sword turned out to be the celebrated blade Gram, of which every Norseman has heard. Sigmund was armed with this weapon when he went out to battle against his brother-in-law, who quarrelled with him about this very sword; for every one who knew its virtues was anxious to become its possessor. All perished in the fight except Sigmund, who was saved by his sister Signy. Sigmund, after taking vengeance against his brother-in-law, took possession of the kingdom, which was his by inheritance. When Sigmund was stricken in years, he went out to fight against the sons of King Hunding. Just as he was about to prove victorious, a one-eyed warrior, of more than mortal might, rushed at him with spear in hand. At the outstretched spear Sigmund struck with his hitherto trusty blade, when it snapped in two. In the one-eyed warrior's features he discovered the giver of the sword, who was no less famous a personage than Odin. Sigmund then knew that his good fortune had departed from him, and he sank down on the battle-field and died.