Origin Story
Deadline is literally a "line of death" (dead + line). During the American Civil War, the Confederate prison camp at Andersonville had a line drawn inside the stockade fence; any prisoner who crossed it could be shot at once by the guards. This boundary was called the deadline. Some 45,000 Union prisoners were held there, and roughly 13,000 died in its brutal conditions. After the war, the word was repurposed in the newspaper printing trade to mean the "printing cutoff time." Once the presses began to roll, nothing more could be changed — an absolute limit — and from there it became the "deadline" now used in every field.
Henry Wirz, the commandant of Andersonville, was convicted at a postwar war-crimes trial and hanged — the only war criminal executed in the wake of the Civil War.
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Oxford English Dictionarydeadline: originally a line drawn around a military prison, beyond which a prisoner was liable to be shot — first attested 1864
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Online Etymology Dictionarydeadline (n.): 1864, "line around a military prison beyond which a prisoner will be shot," from dead + line — figurative sense "time limit" by 1920
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Merriam-Webster Dictionaryoriginally a line drawn within or around a prison that a prisoner passes at the risk of being shot — later extended to mean "a date or time before which something must be done"
Word Evolution
Words from the Same Root
Memory Hook
deadline = dead + line. "Cross this line and you die!" Picture a deadline as exactly that terrifying, and it sticks.
""From a prisoner's death line to an office worker's deadline — urgency transcends every age.""
