Originally thought to have been approximately 400 years old before its death in 1976, this oak was cut after it died in 1986, and a study of its growth rings then showed it to have been approximately 195 years old. First mentioned in 1832 as a corner to the property where Abraham Lincoln was born in 1809, it became known as the Boundary Oak. Because it became associated with Abraham Lincoln as a historic landmark, it was carefully protected, but despite preservation efforts it succumbed to the ravages of time as the nation celebrated its Bicentennial.