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Melencolia I (Albrecht Dürer, 1514) includes an order 4 square with magic sum 34
Melencolia I (Albrecht Dürer, 1514) includes an order 4 square with magic sum 34
Iron plate with an order-6 magic square in Eastern Arabic numerals from China, dating to the Yuan Dynasty (1271–1368).
Iron plate with an order-6 magic square in Eastern Arabic numerals from China, dating to the Yuan Dynasty (1271–1368).
A page displaying 9×9 magic square from Cheng Dawei's Suanfa tongzong (1593).
A page displaying 9×9 magic square from Cheng Dawei's Suanfa tongzong (1593).
The 3×3 magic square in different orientations forming a non-normal 6×6 magic square, from an unidentified 19th century Indian manuscript.
The 3×3 magic square in different orientations forming a non-normal 6×6 magic square, from an unidentified 19th century Indian manuscript.
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Manuscript of the Brethren's Kitab Ikhwan al-Safa i.e. the "Epistles of the Brethren of Purity". Copy created in late Safavid Iran, dated c. 17th cent
Manuscript of the Brethren's Kitab Ikhwan al-Safa i.e. the "Epistles of the Brethren of Purity". Copy created in late Safavid Iran, dated c. 17th century
Double-leaf frontispiece from the "Encyclopedia of the Brethren of Purity". Baghdad, 1287. Süleymaniye Library (MSS Esad Efendi 3636).
Double-leaf frontispiece from the "Encyclopedia of the Brethren of Purity". Baghdad, 1287. Süleymaniye Library (MSS Esad Efendi 3636).
Encyclopedia of the Brethren of Purity (detail). Baghdad, 1287 CE.
Encyclopedia of the Brethren of Purity (detail). Baghdad, 1287 CE.