The popularity of origami continued to grow through about the middle of the 19th century then, except for ceremonial usage it's popularity started to decline during the modernization of Japan. It has been argued by some people that since paper was invented in China in105AD that logically paper folding must have followed shortly after. Studying the creases of existing models has led to the creation of many new models. These creases show definite patterns of triangles, rectangles and other shapes. The geometric study of the crease lines over the last twenty-five years has paved the way for the discovery of new bases. Not all designs are combinations or parts of other bases; some like the box pleat are completely original. Plate Decorations: Perk up any meal with quick plate decorations. Cranes, boats, a bird, a house or a flower made from napkins (cloth or paper), paper towels or any other festive paper you have handy. Fold a large cloth napkin into a bread basket to keep your rolls warm through your meal. Patterned napkins or paper towels make attractive shirt or bow tie plate decorations. The enjoyment that goes along with this activity is definitely good therapy. Not everyone is quick to open up and share their feelings with another individual, even a psychologist or other medical professional. It's essential that the person administering help and advice present a non-threatening image. These projects can be made with one sheet of paper using a limited number of folds. As people develop their origami skills they begin to look for more challenging objects to try. These objects may include more than one piece of paper and may require more time and concentration. However using instructions and diagrams there are many objects a person can make including objects such as a six-pointed star, a flower, animals and many others. One of the basic forms of this activity is the paper airplane. Thousands of people have made paper airplanes not knowing they were doing an origami project. In order to make a perfect paper airplane, it is essential to use exact folds in the paper. This is what the art of origami is about, making precise folds to create a specific object.