Analysis of information sources in references of the Wikipedia article "Origami" in English language version.
The art of folding paper into shapes without cutting it comes from Germany. Origami uses white paper, which can be folded and cut. German kindergartens use paper that is uncut and is coloured on one side, and this came into Japan when the country opened its borders in 1860. Thus what we generally consider origami today in fact has German roots.