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Image: Yuan dynasty iron magic square

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Original image(1,608 × 1,409 pixels, file size: 2.72 MB, MIME type: image/jpeg)

Description: Iron plate with Arabic numbers arranged in a 6 × 6 grid to form a magic square adding up to 111 horizontally, vertically and diagonally (28, 4, 3, 31, 35, 10; 36, 18, 21, 24, 11, 1; 7, 23, 12, 17, 22, 30; 8, 13, 26, 19, 16, 29; 5, 20, 15, 14, 25, 32; 27, 33, 34, 6, 2, 9). Yuan Dynasty (1206-1368). Currently housed at the Shaanxi History Museum in Xi'an. Discovered at Xi'an, Shaanxi Province, 1956.
Title: Yuan dynasty iron magic square
Credit: Own work
Author: BabelStone
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes

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