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Last updated 23/12/2023


How to Find the Centre of a Circle by Folding
This page attempts to record what is known about the origin and history of a simple way of finding the centre of a circle by folding alone. Please contact me if you know any of this information is incorrect or if you have any other information that should be added. Thank you.



As far as I know this method first appears in print in the 1686 edition of 'Het natuurlyk tover-boek' by Simon Witgeest.


The method also appears:


In 'Neueröffnete Raritäten und Kunst-Kammer' by Simon Witgeest, which was published in Nurnberg in 1702.



In 'Natürliches Zauber-Buch oder neuer Spiel-Platz der Kunste' by Simon Witgeest, which was published in 1707.



In 'Onomatologia curiosa artificiosa et magica oder ganz natürliches Zauber-lexicon', which was published in 1759.

Column 340



In the 5th edition of 'Das Buch der Zauberei' by Johann August Donndorff, which was published in Vienna in 1839.