Expo 2010, meet Expo 74

The World Expo 2010 in Shanghai, China, opened this month and expects to attract 70 million visitors. If you are not going to China, you can still visit the World Expos of the past, here in the National Archives. Since the 1876 exposition in Philadelphia, the United States has hosted over a dozen expos. The … Continue reading Expo 2010, meet Expo 74