Ever since the first world’s fair in London in 1851, the goals of world’s fairs have been both high-minded as well as commercial. They also allow people to explore the world outside of their everyday experience — outside cultures, new scientific advancements, and new inventions. As times change, world expositions have changed to fit those times. They continue to reflect both the commercial needs of their times while presenting the ideals, hopes, and aspirations of people even as those evolve.