In 1992, the Lincoln Vault Oak was cut down to protect Abraham Lincoln's burial vault.
At the president's funeral in 1865, the tree stood just a few feet from the event, shading the funeral choir.
When the tree was finally cut down, local arborist Guy Sternberg salvaged the massive stump and began a dissection project that peeled back the layers of history to reveal clues about that day.
Sternberg speaks with Here & Now's Peter O'Dowd about what he was able to learn.
- Guy Sternberg, arborist and owner of Starhill Forest Arboretum in Petersburg, Illinois.
This segment aired on May 1, 2015.