When postmaster William Will at Versailles was asked to suggest a name for a new town, established in 1881, he took his inspiration from Halley's comet, which was a popular subject at the time. On the postal form requesting the town's name he wrote "Comet." But Will's handwriting puzzled postal authorities. They returned the card, asking to verify that the town's name was to be "Comet." "Correct," wrote Will on the card and sent it back to the Post Office Department.

https://en.wikipedia.org/wiki/Correct,_Indiana