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File:Qinghuajian, Suan Biao.jpg

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English: Bamboo slips housed in Tsinghua University. This set of slips was a chart for calculation.
中文:清华简之“算表”,战国时代的乘法计算工具
Date
Source http://news.xinhuanet.com/tech/2014-01/08/c_125970946.htm
Author People from Warring States Period (476-221 BC)

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This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
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Date/TimeThumbnailDimensionsUserComment
current10:51, 7 September 2020Thumbnail for version as of 10:51, 7 September 20201,528 × 2,096 (2.63 MB)CmgleeUse more complete image from http://engine.scichina.com/publisher/CSPM/journal/CAHST/1/1/10.3724/SP.J.1461.2017.01001 without numbers at the bottom.
14:37, 13 March 2014Thumbnail for version as of 14:37, 13 March 2014400 × 532 (201 KB)如沐西风User created page with UploadWizard

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