<div style="FONT-FAMILY: Arial; COLOR: rgb(0, 0, 0); FONT-SIZE: 12px"><div> The following information was also on the university web site:<br /></div><div><br /> <strong>PhD ceremony</strong><br />Roel Nicolai's PhD ceremony is going to be held in Utrecht University's University Hall, at 2.30 p.m. on Monday 3 March. The title of his dissertation is ‘A critical review of the hypothesis of a medieval origin for portolan charts’. His PhD supervisor was Professor Jan Hogendijk, and his associate PhD supervisors were Dr Steven Wepster and Dr Peter van der Krogt.</div><div> </div><div style="border-top:1px solid #bcbcbc;margin:5px 0px;"></div><span style="font-size:12;font-family:arial;color:#000000;">On 03/15/14, <span>Luis Robles<luis.a.robles.macias@gmail.com></span> wrote:</span><div> </div><div style="font-size:12;font-family:arial;color:#000000;"><div dir="ltr">I received this news last Wednesday through from Frank Jacobs's "Strange Maps" blog in BigThink (<a href="http://bigthink.com/strange-maps/648-portolan-charts-too-accurate-to-be-medieval" target="_blank">http://bigthink.com/strange-maps/648-portolan-charts-too-accurate-to-be-medieval</a>). I assume that many of you must have received it too but just in case I thought I should post it here for general information.<br /><br /><b>Roel Nicolai</b>, a PhD student at the University of Utrecht, presented last March 3 his doctoral dissertation entitled <i>A critical review of the hypothesis of a medieval origin for portolan charts</i>. He reached several provocative conclusions that I expect will stir debate among the members of the list. The book is not available online yet, but in the University's website there is a <a href="http://press.uu.nl/origin-of-medieval-sea-charts-disproven/" target="_blank">press release</a> in English from which I have extracted the following statements:<br /><ul><li>"A mathematical analysis of the oldest surviving portolan has revealed that its source data must have been derived from a portolan chart - instead of the other way round."</li><li>"it is unlikely that the nautical compass was available in time and that navigational methods used at that time were sophisticated enough to determine distances at such a degree of accuracy"</li><li>"Nicolai has also established that portolan charts were drawn on the Mercator projection, or a similar type of projection."</li><li>"they were much further advanced in terms of knowledge in the Middle Ages than we think"</li><li>"An Arabic-Islamic origin is highly unlikely, according to Nicolai."</li><li>"It therefore seems plausible that portolan charts originated from a tradition that is now lost. It is an intriguing question from what culture that tradition stemmed. Further research will be required to establish whether or not Greco-Roman antiquity is a realistic option, says Nicolai."</li></ul>The university does not say whether Mr Nicolai was awarded the doctorate or how to get access to his publication.<br /><div><div><div><div><br />-- <br /><div dir="ltr">Luis A. Robles Macías<div><br /></div><div>Profile in <a href="http://independent.academia.edu/LuisRoblesMacías" target="_blank">Academia.edu</a><br /></div><div>Blog: <a href="http://historiaymapas.wordpress.com/" target="_blank">http://historiaymapas.wordpress.com/</a></div></div></div></div></div></div></div><br /><hr size="1" /><br />_______________________________________________<br />ISHM mailing list<br /><a class="parsedEmail" href="mailto:ISHM@lazarus.elte.hu" target="_blank">ISHM@lazarus.elte.hu</a><br /><a class="parsedLink" href="http://lazarus.elte.hu/cgi-bin/mailman/listinfo/ishm" target="_blank">http://lazarus.elte.hu/cgi-bin/mailman/listinfo/ishm</a><br /></div></div>