| The Public Paperfolding History Project
Last updated 30/7/2025 x |
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| How to Construct the Equilateral Triangle by Folding Paper | |||||||
| This
page is being used to collect information about the
history of ways of constructing the Equilateral Triangle
by folding paper. 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. This page includes information about constructing an equilateral triangle by the fold and one cut method ********** 1862 'Das Frobel'sche Faltblatt' (Frobel's Folding Sheet) ) by August Koehler, which was published by Hermann Bohlau in Weimar in 1862, cexplains a way of constructing an equilateral triangle from a square.
********** Instructions for constructing the equilateral triangle by paperfolding are also found: 1863 In 'De Kleine Papierwerkers 1: Wat men van een stukje papier al maken kan: Het vouwen' (The Small Paperwork 1: What one can make from a piece of paper: Folding) by Elise Van Calcar, which was published by K H Schadd in Amsterdam in 1863.
********** 1873 In 'Die Praxis Des Kindergartens' by Auguste Koehler, which was published by Herman Bohlau in Weimar in 1873.
********** 1891 In Volume 2 of 'La Science Amusante' by Tom Tit (real name Arthur Good), which was published in Paris by Librairie Larousse in 1891.
********** 1892 In 'Paper Folding and Cutting' by Katherine M Ball, which was published by the Prang Educational Company in Boston in 1892.
********** 1893 In 'Paper and Scissors in the Schoolroom' by Emily Weaver, which was published by Milton Bradley Company in Springfield, Massachusetts in 1893.
********** In 'The Prang Primary Course in Art Education: Part 2: The Second Primary Year' by Mary Dana Hicks and Josephine C Locke, which was published by The Prang Educational Company in Boston in 1893.
********** 1894 Two methods appear in an article by J Marteau in Manuel General de L'Instruction Primaire, 4th August 1894.
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********** In 'Old Glory: The Flag of Our Country: A Study in History and a Lesson in Paperfolding: Also Some Easy Lessons in Cutting and Folding' by Dr Albert Elias Maltby, which was published in Slippery Rock, Pennsylvania in 1894.
********** 1897 Two methods appear in 'Pliage et Decoupage du Papier' by C Savineau, which was published by Librairie Hatchette et Cie in Paris in 1897.
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********** 1899 In 'Art Instruction in Primary Schools: Second Year' by Mary Dana Hicks, which was published by The Prang Educational Company Boston, New York and Chicago in 1899.
********** 1900 In an article in El Monitor 330 of 31st August 1900.
********** 1918 In 'Scientific Amusements' (an English translation of some of the material from volumes 2 and 3 of 'La Science Amusante' by Tom Tit) which was published by Thomas Nelson and Sons Ltd in London in 1918.
********** In 'Ciencia Recreativa' by Jose Estralella, which was published by Gustavo Gili in Barcelona in 1918.
********** 1931 As a puzzle in 'Puzzles and Curious Problems', which was published by Thomas Nelson in London in 1931.
Solution
********** 1933 In 'Diversions and Pastimes' by R M Abraham, which was first published by Constable and Constable in London in 1933.
********** 1939 This methof appears in 'Trabajo Manual Educativo' by Araminta V Aramburu, which was published by F Crespillo in Buenos Aires in 1939.
********* 1940 In 'El Plegado y Cartonaje en la Escuela Primaria' by Antonio M Luchia and Corina Luciani de Luchia, which was published by Editorial Kapelusz in Buenos Aires in 1940.
********** 1951 A method of constructing an equilateral triangle from a rectangle appears in Plegado laminas published by Della Penna, April 1951. Obtencion de un triangulo equilatero
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