Saroo Brierly was a poor child in India. While out begging with his brother, he fell asleep on a train and woke up 900 miles away from home. After some close calls, he found his way to an orphanage and was adopted by an Australian couple. Twenty five years later, he is now a successful businessman. But he always wondered where he came from, and how his family was doing. He couldn't even remember his village's name.
In any other point history, that probably would have remained a mystery for the rest of his life. But with the help of Google Earth and Facebook, he was able to locate his hometown and reunite with his family. We truly live in wonderful times.