Timeline | How World Expos have shaped the course of human history for 170 years.
CNN
CNN
A History of World Expos in 40 Objects
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Expo 2020
How Expos changed...
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18511851
18551855
18621862
18671867
18761876
18781878
18891889
18931893
19001900
19041904
19391939
19581958
19621962
19671967
19701970
20052005
20102010
20152015