Albert einstein is known as time traveller as he made few theory on his life but he could not make it possile or practically as well…. so he always known as time traveller but there is no evidence or fact says he had travelled. This theory says that space and time are really aspects of the same thing—space-time. There\\\’s a speed limit of 300,000 kilometers per second (or 186,000 miles per second) for anything that travels through space-time, and light always travels the speed limit through empty space. This will be proved is some one travelled in tht speed as well. For example if u start ur travell on age 15 and u were travell for 5 years then u will be only 20 years by end if the travel. But ur friends will be reach an age of 65… this is wat the theory of albert einstein mention and he were known as time traveller.