The Louisiana Purchase Exposition, also known as the St. Louis World's Fair, was held in 1904 in St. Louis, Missouri. It celebrated the centennial of the Louisiana Purchase, a significant land acquisition by the United States from France in 1803. The exposition showcased advancements in technology, culture, and the arts, featuring exhibits from various countries and industries. The fair spanned over seven months and attracted millions of visitors. It included attractions like the Ferris wheel and the Missouri State Building, highlighting the achievements of the time. The event aimed to promote St. Louis as a major city and foster national pride.