1510) furnished maps of the British Isles, Olaus Magnus (1539) of Scandinavia, Anton Wied (1542), Sigismund von Herberstein (1549) and Anthony Jenkinson (1562) of Muscovy.
The Swedish reformers of the 16th century, Olaus and Laurentius Petri, are commemorated by an obelisk.
Although real historical personages - Gustavus Vasa, Olaus Petri the reformer and Gerdt the Anabaptist - figure as leading characters, they are made symbolic of the present-day forces of progress and reaction.
These sudden appearances of vast bodies of lemmings, and their singular habit of persistently pursuing the same onward course of migration, have given rise to various speculations, from the ancient belief of the Norwegian peasants, shared by Olaus Magnus, that they fall down from the clouds, to the hypothesis that they are acting in obedience to an instinct inherited from ancient times, and still seeking the congenial home in the submerged Atlantis, to which their ancestors of the Miocene period were wont to resort when driven from their ordinary dwelling-places by crowding or scarcity of food.
Olaus Petri (1493-1552) and Laurentius Petri (1499-1573) were Carmelite monks who adopted the Lutheran doctrine while studying at Wittenberg, and came back to Sweden in 1518 as the apostles of the new faith.
Olaus, who is one of the noblest figures in Swedish annals, was of the executive rather than the meditative class.
A similar engagement between great and small ants is recorded by Olaus Magnus, in which the small ones, being victorious, are said to have buried the bodies of their own soldiers, but left those of their giant enemies a prey to the birds.