China and the origin of paperEdit
European (paper)folding traditionEdit
Origami in the USAEdit
Lillian Oppenheimer is credited with the spread of origami in the United States in the 1950's and has been credited with popularizing the term "origami" to set it apart from other paper crafts.
Development of diagramsEdit
In the 1950s and '60s, the Yoshizawa-Randlett system of origami diagrams was proposed by Akira Yoshizawa and further developed by Samuel Randlett and Robert Harbin. The ability to consistently document and share designs led to a massive proliforation of available models and origami books.