With the announcement of the host of the World Expo 2020 looming, now is a good time to reflect on what the international event has brought the world since its origins as an industrial exhibition in 1798. What began as a culmination of a national French tradition has grown into a global fair attracting the best and brightest inventors from every continent to showcase innovations that could revolutionise the world. In 1904, electricity was unveiled to the world at the St. Louis World’s Fair, a creation that has dramatically changed how we live today. Come the 2020 World Expo, will we be seeing the next revolution in energy that’s going to change the future? And will you know it when you see it? Some of the greatest inventions, which we take for granted today, have come out of past World Expos. From the infographic below, you’ll be surprised how many you use in your everyday life.