Thomas Ketchell, 25 years old, shares his experience tobring a new way of teaking history through technology in schools around the world. He details his successful experiment using twitter, when while living in Beijing, he experienced the dreadful quality of the air on a daily basis. Wanting to alert people back home what it was like to breathe in this dirty air, he decided with his colleague Steven Chiu -- to re-enact on social media the 1952 Great Smog of London. The success of this re-enactment led to worldwide coverage, which encouraged both Steven and Thomas to co-found Hstry, which relives historical events through a first-person perspective to bring history to life. Hstry is now providing interactive storylines of historical events for both elementary and secondary schools across the globe in line with their vision to become the leading digital learning platform for history.