1569 Gerardus Mercator // [Nova et aucta orbis terrae descriptio…]
-Atlas 51, Maritime Museum Rotterdam (Rotterdam, NL)
-GE A-1064 (RES), Bibliothèque nationale de France (Paris, FR)
-C.29.c.13, British Library (London, EN)
This Revision A presentation corrects errors and expands the analysis of Gerardus Mercator’s 1569 World Map.
Only two full-sized, original versions of this world map survive. The best version of the surviving map resides at the Maritime Museum Rotterdam. This institution (Marcel Kroon assisting) graciously provided the author with high-resolution images of the Greenland and North America sheets. The Bibliothèque nationale de France holds the other surviving full-sized version of the map. The British Library holds two sheets of the original map, one of these sheets illustrating Greenland.
On his 1569 map, Mercator continued the tradition of illustrating a proxy-placement of the North American Baptistery (Newport Tower) on the northeastern coast of Greenland. For predecessors of this illustrative placement with Greenland illustrated, see Claudius Clavus (1427), Nicolaus Germanus (ante 1467, 1481a, 1481b), Martellus Germanus (1480-1500, c. 1491), and Mercator (1541). Mercator’s 1541 globe grouped ALBA, SOTOS[T]OBA, and MARGASTER at the 72.45° latitude on, or adjacent to, the northeastern coast of Greenland. This was a 72° Elevation placement.
On his 1569 work, Mercator retained the ALBA and MARGASTER features, but renamed SOTOS[T]OBA to S: THOME CENOBIUM. The toponym shift identified the monastery described by Nicolò Zeno in his 1558 Narrative and illustrated on his 1558 Map and Atlas. On his 1569 map Mercator positioned the monastery at 74.80° latitude, a departure from the 72.45° latitude position seen on his 1541 globe. Mercator attempted to correct the latitude departure on his 1569 work (BnF map only) by including a hand-drawn feature, slightly lower in latitude at 74.00°, on the island of MARGASTER.
This hand-drawn feature was composite in arrangement. Viewed one way and a rounded hill presents. Rotate the view and one discerns a rectangular tower icon with projecting poles nestled against the hill. Mercator’s tower icon/hill arrangement carries forward the illustrative scheme of the monastery seen on both the 1558 Zeno Map and the Atlas, which positioned the monastery at the top of an multi-tiered elevation.
Mercator’s latitude adjustment on his 1569 map down to 74° using MARGASTER most certainly did not intersect the 72° latitude. Mercator’s hand-drawn illustration was placed at the very southern end of MARGASTER. For Mercator to have placed the hand-drawn feature at 72° latitude, he would have had to place his illustration in the ocean – something that Mercator did not do.
It was challenging to determine if Mercator crafted a tower icon illustration on the North American landform that represented the baptistery. Potentially, he traced an icon on the island of CLAUDIA – but the presentation is too weak to make this a decisive determination on this. Mercator placed CLAUDIA to east of the twin-forked RIO GRANDE in the NOROMBEGA region, an arrangement seen on later cartographic works produced by Abraham Ortelius and John Dee.
Further to the west on the coastline, around the ‘turn of the coast’ and then to the south, one finds a white-pigmented, rectangular form tucked into a bay at 39.39° latitude. This bay was toponym-assigned as BUENA VISTA. This bay was immediately south of MONTAGNES VERDE and RIO DE BUENA MADRE. There are discrete pigment shifts within the rectangular form and on the adjacent shoreline of the bay that strongly suggests that Mercator was using his instrument to purposefully craft miniature features.
To affirm the tower icon illustration within the BUENA VISTA bay, Mercator fashioned an offset-longitude illustration of the North American Baptistery (Newport Tower) out in the ocean far distant from the North American landform, on his latitude scale. Using white pigment, Mercator crafted a miniature rectangular form that he attached to the upper part of the number “0” in the “40” designation of a latitude parallel. Adjacent to this feature, within the latitude bar itself, Mercator then used white pigment to craft multiple tower icons.
Gerardus Mercator is rightfully extolled for the origination of the new cartographic projection scheme that bears his name (the Mercator projection). He is wrong vilified by cartographic historians for adopting the illustrative elements related to the 1558 Nicolò Zeno Map and Atlas. This latter criticism is unwarranted and historically incorrect.
Mercator’s Greenland illustrations, like Zeno’s, were a continuation of cartographic tradition (a proxy-location of the North American Baptistery (Newport Tower)) that had existed, in part, since the 13th century, and explicitly with Greenland being illustrated since the 15th century. Mercator’s Frisland illustration was the adoption of another cartographic tradition, first arising in the 15th century, well prior to Zeno employing it in his Narrative, Map, and Atlas.
Mercator’s GROCLAND was unique. GROCLAND traces back to the historical account of the Inventio Fortunatæ. The Inventio Fortunatæ encapsulated the 1350s/1360s exploration of the Northern Regions of the Atlantic Ocean. GROCLAND represented North America.
This presentation contains 125 slides.
Google Drive PowerPoint (282.5 MB):
https://docs.google.com/presentation/d/1N1rRWKw2f61GXc68xn9zFUDhR_eZSK-5/edit?usp=sharing&ouid=116070484337093837945&rtpof=true&sd=true.
Google Drive PDF (30.9 MB):
https://drive.google.com/file/d/10_ZN_9HTPfgr-7g7JeE7u7W6uDKMEv-6/view?usp=sharing