A “Deadline” Was Once a Line You Could Die Crossing
Today, a deadline is the time by which a report, payment, or project must be completed. Originally, however, it was not a time at all—it was a physical boundary.
The word became widely known during the American Civil War. At the Confederate prison camp in Andersonville, Georgia, prisoners were forbidden from crossing a line inside the stockade. Guards could shoot anyone who stepped beyond it. It was literally a “dead line.”
After the war, the phrase broadened to mean any boundary that could not safely be crossed.
By the early twentieth century, American newspaper printers were using deadline for a line on the bed of a printing press beyond which type would not print properly. Around the same period, the word acquired its modern meaning: the final time beyond which material could no longer be accepted.
The physical line disappeared, but the sense of danger remained. We still say a deadline is looming, approaching, or missed, as though it were a boundary rushing toward us.
So when your boss gives you a deadline, the word’s history explains why it sounds far more threatening than simply saying, “Please finish by Friday.”
