From news of a crippled woman who left her wheelchair and walked after an evangelist prayed over her, to stories of people who died on the operating table only to be revived to tell of bright lights and the pathway to the afterlife, we've all heard of what seem miraculous events. They have surfaced across history. They range from stigmata and bleeding icons to deadly tumors that disappear, and healers who succeed just by laying hands on the afflicted; from people who can predict unexpected events to so-called mediums and those who can allegedly see and speak with the dead. Some miracles are intricately tied to religious beliefs, but there are millions of people who ascribe to no particular religion, yet still believe that things happen that defy all laws of nature, and thus defy scientific explanation.