Almost no one remembered that it had been buried. To make it more difficult, no one knew where exactly it was.

During a demolition project of a former Minnesota high school, construction workers discovered in the rubble a time capsule from 1920.

Time capsules may largely be a thing of the past, but a Minnesota school recently discovered one that is over a century old. Now, Owatonna High School is in the national spotlight over a “historic” time capsule from 1920.

In what Superintendent Jeff Elstad called a "historic event for our community," a more than century-old time capsule has been discovered in the demolition of an old high school Owatonna, Minnesota. The contents of the capsule were unveiled for the first time during a press conference this week.

History enthusiasts in a small Minnesota community outside of Minneapolis gathered with press to open the 1920s-era box buried under an unassuming corner stone.