Krovian Delay
From Tardis Wiki, the free Doctor Who reference
The Krovian Delay was a major battle fought during the Last Great Time War. The event was later mentioned in a book covering the history of N-Space, which listed the delay between the Nevermass Reach and the Ending of Fulmarch and the Night of the Reborn. (PROSE: The Whoniverse) The Krovian were a species. (COMIC: Fooled)
