A bone scan is done to: 1  Find bone cancer or determine whether cancer from another area, such as the breast, lung, kidney, thyroid gland, or prostate gland, has spread (metastasized) to the bone. 2  Help diagnose the cause or location of unexplained bone pain, such as ongoing low back pain.
June 13, 1720, cyclical sign kanoe-ne: The date the original Gohonzon was transcribed by Nichikan Shonin. Cyclical sign refers to one of sixty calendar signs, which are based on the twelve animal signs of the Chinese zodiac and the ten elements of nature according to old Chinese traditions.
A simple historical timeline of eyeglasses starts with their invention, believed to be between 1268 and 1289 in Italy. The inventor is unknown. The earliest eyeglasses were worn by monks and scholars. They were held in front of the eyes or balanced on the nose.