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The World’s Largest Time Capsule and Pyramid, located in Seward, Nebraska, was the creation of Harold Keith Davisson. In July 4, 1975, Davisson sealed the original capsule filled with thousands of letters, memorabilia, a new Kawasaki motorcycle, and a new 1975 Chevrolet Vega with the goal “to preserve the present for future generations.” In 1977, officials at Guinness Book of World Records certified Davisson’s capsule as the largest one in the world and this certification was met with waves of objections from Oglethorpe University of Atlanta, Georgia. Officials at Oglethorpe University claimed its time capsule, known as “Crypt of Civilization,” sealed in 1940, should claim the title. The dispute continued until Guinness Records dropped the Time Capsule category. In 1983, Davisson built the second time capsule in the shape of pyramid filled with memorabilia and a “badly beaten-up 1975 Toyota.” The capsule will be opened July 4, 2025.