The Flemish scholar and geographer Abraham Ortelius (1527–98) published the first edition of his Theatrum orbis terrarum (Theater of the world) in 1570. Containing 53 maps, each with a detailed commentary, it is considered the first true atlas in the modern sense: a collection of uniform map sheets and accompanying text bound to form a book for which copper printing plates were specifically engraved. The 1570 edition was followed by editions in Latin, Dutch, French, German, and Spanish, with an ever-increasing number of maps. Shown here is the first known printed map of Denmark, which appeared in the 1570 edition. The map was based on a 1552 map of the same title by the Danish cartographer Marcus Jordan, with other features taken from a 1543 map by the Dutch printmaker, painter, and cartographer Cornelis Anthonizoon (1505–53).