In 1986, five year old Saroo, a boy who lived in an village in India, fell asleep on a train and got separated from his older brother. He accidently ended up in Calcutta, and did not remember the name of his own village or neighboring villages in order to communicate with any adult who might help, so he took to begging and remained lost. Later, he was taken in by an orphanage, then adopted by an Australian couple who took him back to Australia with them. That's when he became Saroo Brierley. Eventually, when the Internet came about, and Google Earth became available, Saroo did the math, calculating the amount of time it would take on a train from Calcutta to some of the other stops. His fateful "nap" had been fourteen hours, and with that information, he was able to rightly determine which village he had lived in as a child! He actually went home, to Khandwa, India, twentyfive years later! The news was not all good; his brother was deceased, but he still got to see his mom again. 
