Who can talk about Expo knowledge?

World Expo (Universal Expo, Expo is short for Exposition; Also known as the World Expo or World Expo), it is a distinctive forum, which encourages human beings to play a creative and positive role. It also encourages human beings to combine science with emotion and present various new concepts, new concepts and new technologies that are helpful to human development to the world. Therefore, the World Expo is known as the "Olympic" event of world economy, science and technology and culture. The World Expo is an international exposition with great influence and a long history organized by the host country government or entrusted by the government to relevant departments. After more than 100 years' history, it initially focused on displaying fine arts and traditional handicrafts, and then gradually became an exhibition of science and technology, 20 10 Shanghai World Expo and industrial technology, and became a rare place to train industrial talents and enlighten ordinary citizens. The venue of the World Expo is not only to display technology and commodities, but also to be accompanied by colorful performances and charming and spectacular scenery. It is set as a space full of festive atmosphere that cannot be experienced in daily life, and it has become an ideal place for ordinary citizens to entertain and consume. Expo is a gathering of human beings. People gather from all over the world to show their products and skills and praise their hometown and motherland. The World Expo is a masterpiece of human civilization, so it has unparalleled attraction and makes people feel excited. This kind of party can be traced back to ancient times. As early as the 5th century A.D., Persia held its first exhibition beyond the market function. At the end of the eighteenth century, people gradually thought of holding exhibitions similar to expositions, but they only exhibited and did not sell them. The modern world Expo originated in the middle of the19th century, when the industrial revolution was in its infancy. Up to now, the World Expo has been held for more than 40 times, and it has mainly experienced four stages of development.