Cracovian Almanac for the Year 1474

The Almanach cracoviense ad annum 1474 or Cracovian Almanac for the Year 1474 is a broadside astronomical wall calendar written in Latin and the oldest known print in Poland. Produced only twenty years after the invention of the printing press, the single sheet is an incunabulum – an early print predating the 16th century – published by the itinerant Bavarian printer Kasper Straube in 1473 at the beginning of his three-year sojourn in Kraków. Petrus Gaszowiec has been hypothesized as a possible author of the work that, like other almanacs and calendars, lists the holidays of the liturgical year, astronomical data such as planetary oppositions and conjunctions, and medical advice such as the best days for bloodletting. Only a single copy of the work has survived to the present, which is stored in the Jagiellonian University Library.