What is time travel ?
Time travel is a concept of moving from different point in time in a manner analogous to moving between different points in space,. For centuries time travelling possibility has fascinated many philosophers, and scientists -Albert Einstein special theory of relativity, laid the foundation for the theoretical possibility of time travel. He qualified the theory as "special" because it refers only to uniform velocities (meaning to objects either at rest or moving at a constant speed). However there are many clues around the web that people were actually travelled through time and these are a series of image that claim to be the evidence that time travel has already occur.
The above photo was taken in 1940. Some people say the hipster-looking fellow with the sunglasses on the right side of the photo is a time traveller because his hair, shades, clothing, and camera that didn't exist at the time.