Copper engraving with original outline hand colouring. Overall sheet size: 53 cms x 41.4cms ; image size: 460mm x 350mm including top text Mercator’s edition of Ptolemy’s map of modern day Iran and Iraq from Gerard Mercator’s edition of Claudii Ptolemaei Tabulae Geographicae Orbis Terraru. Second state with modified cartouche. The map shows much of Persia (Iran), Mesopotamia (Iraq) and part of Armenia from the Persian Gulf to the Caspian Sea, with Babylon (Baghdad), the Tigris and Euphrates Rivers. The back of the map is browned from a previous framing, small repair to nick at top of the centrefold on the verso else good condition.
Gerard Mercator is one of the most famous cartographers of all time. Mercator was born in Flanders and educated at the Catholic University in Leuven. After his graduation in 1532, Mercator worked with Gemma Frisius, a prominent mathematician, and Gaspar a Myrica, a goldsmith and engraver. Together, these men produced globes and scientific instrument.
With his wife, Barbara, Mercator had six children: Arnold, Emerentia, Dorothes, Bartholomeus, Rumold, and Catharina. In 1552, Mercator moved to Duisburg from Leuven, where he lived for the rest of his life. In 1564, he was appointed the official cosmographer to the court of Duke Wilhelm of Cleve.
Mercator’s most important contribution was the creation and popularization of a projection which now bears his name. On the maps drawn on Mercator’s projection all parallels and meridians are drawn at right angles to each other, with the distance between the parallels extending towards the poles. This allowed for accurate latitude and longitude calculation and also allowed navigational routes to be drawn using straight lines, a huge advantage for sailors as this allowed them to plot courses without constant recourse to adjusting compass readings.
Mercator’s other enduring contribution to cartography is the term “atlas”, which was first used to describe his collection of maps gathered in one volume. The Mercator atlas was published in 1595, a year after Mercator’s death, thanks to the work of his sons, particularly Rumold, and his grandsons.
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