As construction crews tore down an old high school building, a school employee alerted them to an engraved cornerstone that read "AD 1920." He was just in the nick of time, and folks are glad to ...

As construction crews tore down an old high school building, a school employee alerted them to an engraved cornerstone that read "AD 1920." He was just in the nick of time, and folks are glad to ...

As construction crews tore down an old high school building, a school employee alerted them to an engraved cornerstone that read "AD 1920." He was just in the nick of time, and folks are glad to ...

As construction crews tore down an old high school building, a school employee alerted them to an engraved cornerstone that read "AD 1920." He was just in the nick of time, and folks are glad to ...

As construction crews tore down an old high school building, a school employee alerted them to an engraved cornerstone that read "AD 1920." He was just in the nick of time, and folks are glad to ...

As construction crews tore down an old high school building, a school employee alerted them to an engraved cornerstone that read "AD 1920." He was just in the nick of time, and folks are glad to ...

As construction crews tore down an old high school building, a school employee alerted them to an engraved cornerstone that read "AD 1920." He was just in the nick of time, and folks are glad to ...

As construction crews tore down an old high school building, a school employee alerted them to an engraved cornerstone that read "AD 1920." He was just in the nick of time, and folks are glad to ...

As construction crews tore down an old high school building, a school employee alerted them to an engraved cornerstone that read "AD 1920." He was just in the nick of time, and folks are glad to ...

As construction crews tore down an old high school building, a school employee alerted them to an engraved cornerstone that read "AD 1920." He was just in the nick of time, and folks are glad to ...

Recently, while a construction crew was demolishing an old high school in Minnesota, they — with the help of a school employee — found a time capsule from the Roaring '20s.On Monday — over a century ...