City Cast DC logo

Hidden Time Capsule Uncovered In DC Church

Posted on September 11, 2024   |   Updated on September 30, 2025
Kaela Cote-Stemmermann

Kaela Cote-Stemmermann

The new cathedral facade after the 2024 renovations. (Farragutful/Wikimedia Commons)

The new cathedral facade after the 2024 renovations. (Farragutful/Wikimedia Commons)

The Cathedral of St. Thomas More in Arlington, Virginia held a secret. When renovating the 60-year-old church, construction workers found a time capsule lodged into one of the cornerstones.

Restoring The Time Capsule

Sadly, the container had taken in a fair bit of water and mold coated the inside, however many things were still salvageable. The church brought in two conservators – one specializing in metal and one in paper – to save the contents inside.

Time capsule contents. Coins and a dollar from the year it was placed. (Courtesy Catholic Diocese of Arlington)

Time capsule contents. Coins and a dollar from the year it was placed. (Courtesy Catholic Diocese of Arlington)

What Was In The Capsule?

They recovered old coins minted between 1958 and 1961, lists of the church’s architects and builders, including where they bought all the materials, and Washington Post articles on the church’s construction. The capsule also included a “silver certificate” dollar from that year.

A Capsule For This Generation

They couldn’t just leave the cornerstone empty! The church decided to replace it with a new watertight, fireproof capsule with modern items. They included prayer cards, articles on the renovation, a rosary that was blessed by the Pope, and a letter to the future church management.

They replaced the capsule in a ceremony at the cathedral last month, completing its construction. The church says it hopes some lucky person will discover the capsule 50 to 100 years from now.

Share article

Hey DC

Get smart about D.C. with our news roundup and analysis.

Can't subscribe? Turn off your ad blocker and try again.

DC History

See All
DC HistoryApril 16

Get To Know the Architecture of DC Homes

D.C.’s neighborhoods are a patchwork of distinct architectural styles, each tied to a specific historical moment.

Logan Circle is known for its "gaslight era" Victorian homes. (Kimprobable/Getty Images)
DC HistoryMarch 30

The Rise & Fall of DC’s Iconic Wrestling Institution

At the height of the Great Depression in 1935, a small-time D.C. wrestler named Joe Turner opened what would become the city’s most succe...

 Joe Turner's arena
DC HistoryFebruary 17

Washington DC’s First Chinese Restaurants

D.C.’s Chinatown is a bit lackluster in terms of authentic cuisine, but that wasn’t always the case. Restaurants were some of the first C...

Port Arthur restaurant, Washington D.C. The largest Chinese restaurant in the city in 1909, owned by early restaurateurs Ung Wah. (Streets of Washington/Flickr)
DC HistoryJanuary 27

How This Storm Compares To DC’s Largest

Sunday’s snowstorm in D.C. was remarkable, not only because of how much snow we got but because the combo of cold temps and sleet means i...

Horse-driven sleigh on a snowy path near the Lincoln Memorial (Bettmann/ Getty Images)
DC HistoryNovember 18, 2025

6 Spy Sites In Washington, DC That Changed History

This nondescript park in Foggy Bottom, close to the State Department, has seen its fair share of spy activity.

Peirce Barn 1972. (HABS Survey/NPS)
DC HistoryOctober 23, 2025

DC’s Secret Séance History

In Gilded Age Washington, D.C., séances and Ouija boards weren’t just parlor tricks — they were part of a craze that swept through societ...

An illustration from the 19th century of a spiritual séance. (clu/Getty Images)
DC HistorySeptember 23, 2025

From The Archive: How DC Became a Showcase of Brutalism

Love them or hate them, Brutalism has become a central part of D.C.’s iconography over the years. Here's why.

DC Metro ceiling. (Ralph Grunewald/Getty Images)
DC HistoryAugust 26, 2025

The Glen Echo Carousel that Became a Civil Rights Movement

Tucked away in Glen Echo Park is one of the world's most elaborate and historic carousels that played a surprising roll in the Civil Righ...

The Glen Echo Dentzel carousel gets a last minute touch up before the season's inaugural ride. (The Washington Post/Getty Images)

The latest in DC

DC, Explained

How Adams Morgan Got Its Name

How community members gave Adams Morgan and a uniting cause.

A rooftop view of homes covered in snow.
Food & DrinkApril 15

DC's Best New Restaurants and Bars

Welcome to our rolling list of all the best new restaurants opening in Washington, DC!

Steak at Bazaar Meat by José Andrés. (Photo by Liz Clayman)
DC's BestApril 14

DC Blooms Better Than the Cherry Blossoms

The city is filled with flowering trees and bushes that get overlooked thanks to the spotlight-stealing cherries.

Gardens at Hillwood Estate. (Photographed by Erik Kvalsvik/ Courtesy Hillwood Estate, Museum & Gardens)
Local CivicsApril 13

Why the Holocaust Museum Self-Censored Before Trump Even Asked

The Holocaust Museum has been quietly changing its content since President Trump returned to office to avoid drawing the administration’s...

The United States Holocaust Memorial Museum. (ajay_suresh/Wikimedia Commons)
Food & DrinkApril 9

DC's Top Food Critic’s Favorite Spots

The food critic at the Washington Post has long been seen as an all-powerful — and totally anonymous — figure in the local restaurant ind...

Washington Post food critic Elazar Sontag. (Photo courtesy of Elazar Sontag)
Neighborhood GuidesApril 8

Get to Know 11th Street NW in Columbia Heights

11th Street in Columbia Heights is one of my favorite hangout spot in the District. You can garden, snack on crispy pig ears, and grab fr...

11th Street NW, Columbia Heights. (Google Maps)
DC, ExplainedApril 6

Inside the Story of Elon Musk’s Failed DC Hyperloop

Before Elon Musk's DOGE there was his fantastical hyperloop. But, it went down as one of the biggest transport flops in D.C. history. We...

President Donald Trump speaks during a news conference with Elon Musk. (The Washington Post/Getty Images)
DC, ExplainedApril 2

Mosh Madness: DC’s Next Big Music Festival Is Also a Basketball Tournament

Mosh Madness, D.C.’s premier music festival slash basketball tournament is back for its second iteration this spring. On April 11 the DMV...

Pretty Bitter rock as ballers try to block. (Photo by Bailey Payne)