In this post, students will learn about an inscription hidden inside President Abraham Lincoln's watch that was a secret until the Museum investigated further in 2009. The message was put there by watchmaker Jonathan Dillon, who was repairing Lincoln's watch when the first shots were fired on Fort Sumter in 1861. His reaction to the firing on Fort Sumter adds a fascinating layer to our historical knowledge about the watch in our collection. More than that, Dillon’s secret message—now revealed—is a reminder of the many rich histories so many of us keep in our families, connecting us in a deep and personal sense with the strange inner workings of the past. Written by Dana Allen-Griel, New Media Project Manager, this post is published on the Museum's "O Say Can You See?" blog.