The number of basic origami folds is small, but they can be combined in a variety of ways to make intricate designs. The best known origami model is probably the Japanese paper crane. In general, these designs begin with a square sheet of paper whose sides may be different colors or prints. Traditional Japanese origami, which has been practiced since the Edo era (1603–1867), has often been less strict about these conventions, sometimes cutting the paper or using nonsquare shapes to start with.
The principles of origami are also being used in stents, packaging and other engineering structures.
There is much speculation about the origin of Origami. While Japan seems to have had the most extensive tradition, there is evidence of an independent tradition of paperfolding in China, as well as in Germany, Italy and Spain among other places. However, because of the problems associated with preserving origami, there is very little direct evidence of its age or origins, aside from references in published material.
In China, traditional funerals include burning folded paper, most often representations of gold nuggets . It is not known when this practice started, but it seems to have become popular during the Sung Dynasty (905–1125 CE). The paper folding has typically been of objects like dishes, hats or boats rather than animals or flower.
The earliest evidence of paperfolding in Europe is a picture of a small paper