Traveling Through Time: When Did We Start Believing It Existed?

From the well-defining characteristic of a time machine in the movie "Back to the Future" to scientific papers exploring time as an element, these are all proof that we humans are still fascinated about knowing the nitty-gritty of time travel. We know it is impossible, yet we still cling to the idea of it. How did it started, and why are do we end up chasing the concept? This is what James Gleick tried to unravel in his book "Time Travel: A History."