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8/31/2019 A. Terry Bahill Emeritus Professor of Systems Engineering

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Presentation on theme: "8/31/2019 A. Terry Bahill Emeritus Professor of Systems Engineering"— Presentation transcript:

1 Ancient Mysteries: Maps, Portolan Charts and Khipus Part 4 The Bird Claw in Africa
8/31/2019 A. Terry Bahill Emeritus Professor of Systems Engineering University of Arizona ©, 2019, Bahill

2 8/31/2019 © 2019 Bahill

3 The bird claw in Africa 8/31/2019 © 2019 Bahill

4 Dulceto, 1339 8/31/2019 This is the first portolan chart with the bird claw in Africa (that I have found). The claw is brown in color. (Like sandy hills) The hook is in between Corsica and Majorca The Red Sea is, as always, red. Angelino Dulceto, Latin and Italian G in the British Library 8/31/2019 © 2019 Bahill

5 Bumps in the claw look like brown desert mountains
8/31/2019 © 2019 Bahill

6 8/31/2019 Cresques 1375 The red sea is usually painted red Abraham Cresques (Catalan pronunciation: [əβɾəˈam ˈkɾeskəs], 1325–1387), whose real name was Cresques (son of) Abraham, was a 14th-century Jewish cartographer from Palma, Majorca (then part of the Crown of Aragon). In collaboration with his son, Jehuda Cresques, Cresques is credited with the authorship of the celebrated Catalan Atlas of 1375. 8/31/2019 © 2019 Bahill

7 Catalan Atlas (Cresques) 1375
8/31/2019 © 2019 Bahill

8 8/31/2019 Soler 1380 The claw lost its color but not its shape 8/31/2019 © 2019 Bahill

9 Vallseca 1439 Is this bird claw pushed up with the hook pushed left?
8/31/2019 Vallseca 1439 Is this bird claw pushed up with the hook pushed left? 1439 portolan chart by Gabriel de Vallseca A Catalan cartographer of Jewish descent connected to the Majorcan cartographic center. The red sea is painted red The Alps are in green What is the red crescent in the upper-right? Caucasus mountains? The Azores in the middle left are new. 8/31/2019 © 2019 Bahill

10 Alps 8/31/2019 © 2019 Bahill

11 Petrus Roselli, 1450 8/31/2019 © 2019 Bahill 8/31/2019
The Alps are bigger. The hook in Africa has moved left. 56 by 104 cm. 8/31/2019 © 2019 Bahill

12 Roselli, 1465 “This mountain range is called Carena by the Saracens and by the Christians the white mountains. Note that in these mountains are many good cities and castles which make war against the others. Note that in the said mountains there is an abundance of all goods of the world” 8/31/2019 © 2019 Bahill

13 CGA5d 1450 8/31/2019 © 2019 Bahill 8/31/2019 Alps copied
Pyrenees in blue Red Sea shows Moses’ path through it The claw is green, like the Alps 8/31/2019 © 2019 Bahill

14 8/31/2019 Pareto 1455 Caucasus? 8/31/2019 © 2019 Bahill

15 8/31/2019 Roselli 1466 Majorca this example dates from 1465, the Catalan tradition Alps copied Red Sea copied 8/31/2019 © 2019 Bahill

16 8/31/2019 Canepa 1489 Alps and Pyrenees in green de Canepa trained as an apprentice in Roselli’s atelier. 8/31/2019 © 2019 Bahill

17 8/31/2019 ben Zara 1497 Alps Red Sea copied 8/31/2019 © 2019 Bahill

18 8/31/2019 ben Zara 1500 Alps 8/31/2019 © 2019 Bahill

19 Juan de la Casa, 1500, second bird claw
8/31/2019 © 2019 Bahill

20 8/31/2019 Unknown 1505 These really look like mountains 8/31/2019 © 2019 Bahill

21 Russo 1508 8/31/2019 © 2019 Bahill

22 Jacobus Russus, 1533 8/31/2019 © 2019 Bahill 8/31/2019
Very much like Roselli 1466, but Tin Eye says it is not the same The flags at the middle right are different Jacobus Russus of Messina Sicily, aka Giacoma Russo 8/31/2019 © 2019 Bahill

23 8/31/2019 Roselli 1466 Majorca this example dates from 1465, the Catalan tradition Alps copied Red Sea copied 8/31/2019 © 2019 Bahill

24 Mountains on non portolan charts
8/31/2019 © 2019 Bahill

25 Global warming 8/31/2019 © 2019 Bahill 8/31/2019
There are no mountains that go right across north Africa 8/31/2019 © 2019 Bahill

26 North Africa Atlas Mountains Tibesti Mountains 8/31/2019 © 2019 Bahill
The crescent shape may be the Tibesti Mountains, 20 deg North 18 deg East Highest point is 19 deg N, 20 deg E 8/31/2019 © 2019 Bahill

27 Africa Tibesti Mountains 8/31/2019 © 2019 Bahill 8/31/2019
25 deg N and 12 deg E 8/31/2019 © 2019 Bahill

28 Ptolemy 150 AD, reconstructed by al-Idrisi in 1154
8/31/2019 This has the claw in Africa, the Alps and the Pyrenees 8/31/2019 © 2019 Bahill

29 Ptolemy 150 AD, reconstructed in 1482, note the sixteen winds
8/31/2019 Ptolemy 150 AD, reconstructed in 1482, note the sixteen winds It has the claw in Africa 8/31/2019 © 2019 Bahill

30 8/31/2019 Munster 1542 It has the claw in Africa 8/31/2019 © 2019 Bahill

31 The bird claw in Africa 8/31/2019 © 2019 Bahill

32 8/31/2019 © 2019 Bahill

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