Lincoln Oath

A presidential signature reveals a key Civil War practice history textbooks often overlook More

The Royal Oak Museum in Webster, Michigan has a note that Abraham Lincoln signed. Supposedly. The museum’s curator is always suspicious of Lincoln forgeries, so she asks Tukufu Zuberi to verify this signature. The words are scribbled on the back of a square cut from an unfamiliar document. This message, coupled with the document, reveals a key Civil War practice history textbooks often overlook.

AIR DATE 7/30/12