Expo 2020 was supposed to be hosted in the year 2020 but due to Covid-19 it is happening on October 1st 2021. Expo will begin in one of the world's most advanced cities Dubai. But before we get into the details, what is the purpose of Expo and when did the first Expo happen? Expo is an event that happens every 5 years where the world showcases the latest inventions that thousands, maybe even millions of people see. The first expo happened in London from May 1, 1862 to Nov 1, 1862. Hope you can make it to Expo 2020. I know I will be there.