Inside America's 250th Birthday Time Capsule
Language
Reading Level
Listen to Article
Alignment
On July 4, 2026, the United States will celebrate its 250th birthday. To mark the occasion, officials will bury a time capsule in Philadelphia. The capsule is designed to give future Americans a glimpse of life in 2026. It will be opened on July 4, 2276, when the nation observes its 500th birthday.
All 50 states, Washington, DC, and the US territories contributed to the project. Some, like Utah, went all out. The state sent 100 cards featuring historical citizens, 13 coins, eight documents, eight pins, two granite disks, and a booklet. Others contributed just one or two items. Arkansas submitted a diamond, while Maine added a bone from an endangered whale. Wisconsin contributed a feather from “Old Abe,” a bald eagle that served with Union soldiers during the American Civil War. California sent a high-tech package. It included a computer chip and an AI-generated prediction of what the state might look like in 2276.
Choosing the items was only part of the challenge. Making sure they would survive underground for 250 years was even more difficult. That task was given to Michael Berilla and his team at the National Institute of Standards and Technology (NIST).
Water is one of the biggest threats to buried time capsules. Even small leaks can destroy their contents. To solve this problem, Berilla and his team made the capsule from stainless steel and sealed it with a soft metal that fills tiny gaps to create a watertight barrier. They also chose a cylindrical design instead of a traditional box. That is because boxes are more likely to crack at the corners after years underground, increasing the risk of moisture leaks. A heavy steel cover will also be placed on top to further protect the capsule.
"Philadelphia would have to be six feet underwater in order for this time capsule to even possibly take on water," Berilla said.
A new sculpture based on Benjamin Franklin’s “Join, or Die” cartoon will mark the location of America’s Time Capsule.(Credit: Independence Historical Trust)
The capsule will be buried near Independence Hall in Philadelphia on July 4, 2026. This is where the Declaration of Independence was adopted in 1776. To help future generations find the site, it will be marked by a custom granite-and-steel sculpture. Shaped like a large segmented snake, it is inspired by Benjamin Franklin’s famous 1754 "Join, or Die" cartoon. In that drawing, Franklin used a snake divided into parts to show that the original American colonies needed to unite to survive. The National Park Service has also recorded the location in official documents that will be passed down to future park rangers.
When the capsule is finally opened in 2276, the first items inside will be a photograph of the engineering team and a letter from Berilla.
It states, "Greetings from the living, breathing hearts and hands of 2026. We will have long since returned to dust, but our devotion, pride, and unwavering hope for what our world could become are alive right here inside this steel. We built this for you."
Resources: Smithsonianmag.com, CNN.com, CBSnews.com, APnews.com
Get the Workbook for this article!
Workbook contains: Article, Reading Comprehension, Critical Thinking Questions, Vocabulary in Context (+ answers), Multiple Choice Quiz (+ answers), Parts of Speech Quiz (+ answers), Vocabulary Game (+ answers)Cite Article
Learn Keywords in this Article
27 Comments
natalic_555555 dayswho knows, I'm 13 so in 50 yrs they might find a way for me to to see the future (time travel, not dying, magic ball? who knows)- natalic_555555 daysHopefully we have a better world, but unfortunately I think tech will consume our lives
- natalic_555555 daysthat's so cool! I wish I was alive to see their reactions, and to see if ai is right.
jesus_is_king12 daysI wonder what the people who open it in the future will think of the things inside🤔 I also wonder how complex AI will be when its opened. But who knows? Maybe we won't even know! Jesus is coming back soon!- ditomawubynu3 daysgood job
isavyninja6730 daysNice idea
doggiechristmasabout 2 monthsHow interesting! Though, I do find it disappointing that we're using AI, whether than a human generated simulation of some savable sort.- starryyy22 daysYea its sad how Ai is replacing us its killing polar bears why cant ai use the dirty non drinkable water to cool down
spreadthelulzabout 1 monthI think the point of the AI is to show how technology has progressed by 2026, and how it might improve by the time the capsule is opened. However I think this was an unusual choice
ilovehenrydsaf1about 2 monthsI agree with you. but sometimes It is good to use ai
i_love_godabout 2 monthsI don't really think it is good to use ai- ilovehenrydsaf1about 2 monthsbut what if you needed to Google something? Google is ai
k1w1l3mon14 daysGoogle is also a search engine, which then means that all sources that you search for something on is ai. And a lot of everyday jobs use ai so its good and bad, in ways.- i_love_godabout 2 monthsYeah I guess your right
- mewybybylomeabout 2 monthsJames says, "I wonder if they will still be using paper in 250 years." Grandma says, "I understand why California used AI on the future prediction. AI is new, maybe it will be used in the future, maybe not. But it's a big, new technology in 2026, so they should include something related to it."
- ztirom305about 2 monthscool
dogo23rexxabout 2 months2276=😵for earth,I mean 2100 is already a long time- ilovehenrydsaf1about 2 monthscool!
