Editing Flashcard (section)

==History==
Paper flashcards have been used since at least the 19th century. ''Reading Disentangled'' (1834), a set of [[phonics]] flashcards by English educator [[Favell Lee Mortimer]], is believed by some to be the first known usage of flashcards.<ref>''The Clumsiest People in Europe: Or, Mrs. Mortimer's Bad-Tempered Guide to the Victorian World,'' [[Favell Lee Mortimer]], foreword by Todd Pruzan, 2006 edition, [https://books.google.com/books?id=B_AC9ae6lzkC&pg=PA5&dq=favell+mortimer+flashcards p. 5]</ref> A single-sided [[hornbook]] was also known to have been used for early literacy education.

The [[Leitner system]] for scheduling flashcards was introduced by German scientific journalist [[Sebastian Leitner]] in the 1970s with his book, ''So lernt man lernen.''<ref>''So lernt man lernen. Der Weg zum Erfolg (How to learn to learn),'' Freiburg i. Br. 1972/2003, {{ISBN|3-451-05060-9}}</ref> Later, the [[SuperMemo]] program and algorithm (specifically the SM-2 algorithm, which is the most popular in other programs) was introduced in 1987 by Polish researcher [[Piotr Woźniak (researcher)|Piotr Woźniak]].<ref>[http://www.supermemo.com/english/ol/beginning.htm 3. Account of research leading to the SuperMemo method, 3.1. The approximate function of optimal intervals] {{Webarchive|url=https://web.archive.org/web/20190309172012/https://www.supermemo.com/english/ol/beginning.htm |date=2019-03-09 }} and [http://www.supermemo.com/english/ol/sm2.htm 3.2. Application of a computer to improve the results obtained in working with the SuperMemo method], [[Piotr Woźniak (researcher)|P. A. Wozniak]], ''Optimization of learning,'' Master's Thesis, University of Technology in Poznan, 1990.</ref>