World Expo (World Expo), also known as International Expo, is an international Expo activity with great influence and a long history, which is organized by the host government or entrusted by the government. Exhibitors show the world the achievements of contemporary culture, science and technology and industry that have a positive impact on various areas of life.

Basic introduction: World Expo (Expo is the abbreviation of Exposition; Also known as World Fair or World's Fair) is a distinctive forum, which encourages human beings to play a creative and active role. Combine science with emotion, and show all kinds of new concepts, new concepts and new technologies that are helpful to human development to the world. It is characterized by long holding time, large exhibition scale, many participating countries and far-reaching influence. Therefore, the World Expo is known as the "Olympic" event of world economy, science and technology and culture. There are two kinds of Expo: comprehensive Expo and professional Expo. The comprehensive Expo will be held once every five years, while the professional Expo will be held indefinitely.

In the ancient farming society, people often carried out trading activities in harvest celebrations, religious ceremonies and festive festivals, and later gradually developed into large-scale trade and exhibition gatherings with regular and fixed places for the purpose of exchanging goods. This is the embryonic form of the World Expo. In the 5th century A.D., Persia held the first exhibition that surpassed the market function. In the 8th century, with the continuous emergence of new technologies and new products, people gradually thought of holding an exhibition similar to the fair, but only showing and not selling, with the purpose of publicizing and displaying new products and achievements. In 1791, the Czech Republic held such an exhibition for the first time in the capital Prague. With the progress of science and technology and the development of social productive forces, the scale of the exhibition has gradually expanded, and the geographical scope of the exhibition has expanded from one place to the whole country, from home to abroad, until it has developed into a world-wide exposition with many countries participating. The Paris World Expo in 1867 has already possessed the embryonic form of a modern World Expo. Meeting period: April 1, 1867 to October 3, 1867. The main topic: the history of labor.