Origami is the Japanese art of paper folding, where "ori" means folding and "kami" means paper. While origami began in China in the 1st or 2nd century, it later spread to Japan during the 6th century when paper was still an expensive luxury good. Over time as paper became more accessible, origami grew in popularity among more people in Japan as older generations taught the art to younger ones without formal written rules or instructions. Today one of the most well-known origami figures remains the crane, a sacred bird in Japan representing good luck and longevity.