Prior to 1570, maps were often unreliable, illegible, and unwieldy. When Ortelius published his Theatrum orbis terrarium, it was the first comprehensive, easy-to-use, and fairly up-to-date collection of world maps. It drew from the works of 87 cartographers, all of whom were credited. Demand was immediate and persisted for decades, during which time dozens of editions were published in several languages. In addition to practical contemporary maps, Ortelius published what? Discuss
Source: The Free Dictionary