US buries time capsule to be opened 250 years later in historical park

The United States has launched an extraordinary project to celebrate the 250th anniversary of the country's independence, burying a special time capsule underground to be sent to the future. Placed under the National Independence Historical Park in Philadelphia on 4 July, the capsule was sealed to remain unopened for exactly 250 years. As part of this significant event, over 200 items donated by the 50 states, Washington D.C., five American territories, and the three fundamental branches of the republic were turned into a historical archive. The capsule is scheduled to be opened on 4 July 2276, the date marking the country's 500th birthday. The main purpose of this initiative is not to preserve valuable treasures, but to document how Americans in 2026 represent themselves to people ten generations into the future.

In the process of selecting the items to be placed in the capsule, each state and institution was granted the freedom to choose objects reflecting their own identity. Since there was no mandatory list of items or a common model to follow, the result emerged as an extremely diverse and colorful portrait of the nation. For instance, the state of Arkansas sent a valuable diamond found in Crater of Diamonds State Park to the capsule, while Maine chose the bone of a critically endangered North Atlantic right whale. To emphasize the importance of aviation history, Ohio included a piece of fabric from the Wright Brothers' 1903 flight. The Northern Mariana Islands, on the other hand, donated traditional neckties to carry their local culture into the future.

Items reflecting technological and scientific advancements are also among the most striking pieces in the capsule. The state of California included a cutting-edge quantum computing chip developed by Berkeley University and a superconductor used in nuclear fusion research. In addition to these, the technological vision of the era was recorded by asking an artificial intelligence system questions about the future. For example, the AI model Claude was asked, "What will California be like 250 years later?" and the interesting responses received were placed in the capsule. According to the AI prediction, highways will disappear in the future, the state will secede from the United States, and grizzly bears will return to the region. Regardless of whether this comes true, this item is considered a historical record documenting how an artificial intelligence in 2026 imagined the future.

The Amerika250 committee also personally selected some symbolic objects representing the country as a whole and added them to this collection. Chief among them is a specific iPhone model chosen specifically to symbolize the consumer technology and digital age of the 2020s. The capsule also features special items belonging to American sports culture; a commemorative coin minted for the NFL playoffs, a photo of the 2026 PGA Tour champion, and a special roster list from the MLB opening season are included. Coca-Cola, a world-renowned brand, carried a campaign shedding light on its corporate history into the future. The brand donated a special glass bottle named "I'd Like to Buy America a Coke," which contains the sheet music of one of the most famous advertising jingles in its history, to the time capsule.

Perhaps the most scientifically striking piece of the collection relies on a unique data storage method provided by the Library of Congress. Instead of traditional hard drives or servers, researchers encoded the institution's most valuable documents into synthetic DNA molecules, creating an indelible archive. This biological storage area, kept in a small metal container the size of an eraser, contains Thomas Jefferson's draft of the Declaration of Independence and the original handwriting of the anthem that inspired the star-spangled banner. Furthermore, audio recordings from 1898, a three-dimensional reconstruction of Abraham Lincoln's hand, and various historical digital documents were encoded into this micro-archive. According to project leader Michael Berilla, this diversity makes the time capsule special; because these objects transfer what today's people care about and value to the future, creating a shared identity story.