Joan Blaeu's world map "Nova Totius Terrarum Orbis Tabula," 1648. The Ransom Center's copy, one of only two known to exist and the only colored copy, survives complete with an accompanying text. Photo by Pete Smith.

The Ransom Center recently launched an online database for its Kraus map collection. The 36-map collection, acquired in 1969 by Harry Ransom from the New York antiquarian dealer Hans P. Kraus, features a wide range of individual maps of Europe and America, atlases, a rare set of large terrestrial and celestial globes (ca. 1688) produced by the Italian master Vincenzo Coronelli, and a group of manuscript letters by Abraham Ortelius.

“Visitors can see the remarkable foundations of modern cartography in this digital collection,” said Richard Oram, the Ransom…