Throughout its existence of more than 150 years， the Expo ime and trend of development， reflecting the human civilization。
The main attractions of the first session of the he Crystal Palace in London: almost 500 meters long palace built of cast iron and glass。 Subsequently， the participating countries ages to introduce from time to time every feoday EXPO is the economic and cultural Olympiad of the ition among nations， as ors from the private sector on a given subject。
At the same time， it is about marketing countries internationally。 Expositions of the first category last a maximum of 6 months and may be held on an enormous area。 But at a time ion as hrough the internet and other technologies， they remain a place of rendezvous and of authentic experiences。