1407

ANDREAS BIANCHO DE VENERIIS ME FECIT M.CCCC.XXXvj: ATLANTE NAUTICO OF ANDREAS BIANCHO EXPLAINED

Now comprising 10 sheets; the ‘Raxon de Marteloio’, ‘seven charts’, a ‘circular World map’ and a ‘Ptolemaic world map’, they have now been removed from a binding which stitched through their centre fold and presented in a boxed edition folio. It was produced in 1993 as a special publication of 1500 exemplars, (this authors is number 1148), and has a text by Professor Piero Falchetta of the Biblioteca Marciana,Venice, which holds the ‘Atlante Nautico’ and he describes the content (in Italian) but does not attempt to analyze the diagrams or charts cartographically. It is a historian’s narrow view of the ‘Atlante Nautico’.

This paper delves into the construction and draughtsmanship required for the charts, their geometry and trigonometry as well as explaining the ‘Raxon de Marteloio’ principles as set down by Andreas Biancho which have hitherto been basically mis-represented and not forensically examined to exhibit the simple facts. There is also a discussion apropos the supposed Ptolemaic map of possibly indifferent authorship and the problems there-of.

14 A4 pages and 29 full colour diagram maps

February 2014
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1475 4206

THE CASPIAN SEA AND ITS ENVIRONS ON HISTORICAL MAPS, AND ITS EFFECT OF LEVEL CHANGES ON THE SURROUNDING LANDSCAPE AT LEAST 2500 YEARS AGO

The Caspian Sea is rather under- represented in texts and charts from C1300 to C1600AD. It is noted in the earlier texts by Greek and Roman cosmographers and historians, but, it does not gain a place in extant charts until Claudius Ptolemy’s “Geographia” c150AD, published in 1407 and did not appear in European maps until the late 14th century. But Ptolemy saw it as a massive body of water, far exceeding anything thought possible. But in fact he was portraying an event which is known to have occurred and possibly accounts for the fact that the Aral Sea was missing completely.

The historical facts are followed and a new paradigm is found.

The text is 13, A4 pages and contains 32, A3 diagrams

August 2022
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4243

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