Man has always stood confused in front of the nature of time since the beginning of creation, and the definition of scientists has occupied it until the present time, but the twentieth century witnessed the emergence of an exceptional world that chose to define time in its own way, despite the difficult circumstances that it went through, that is the famous British scientist: Stephen Hawking (Stephen Hawking). A strange family. Stephen Hawking was born on the eighth of January of the year one thousand nine hundred and forty -two in Oxford in the United Kingdom (UNITED KINIDOM). .