One of largest unsolved problems in science is the finding of the united theory, which explains everything in the universe. Scientists explore it in infinitesimal world and super large space. Here I have created a single fundamental theory of everything based on the open hysteresis of electromagnetism. Some researchers had known being whatever secret preserved in hysteresis of materials for a long time. But they can describe neither its mathematical description, nor secret. My theory shows brand-newly the universe from quantum mechanics to cosmology by a simple trigonometrical formula. The origin, fate and the largest structure of universe are described. I indicate that the diameter of whole universe is approximately 60000 Mpc, which equals 195.7 billion light years.