"They" is a short story written by American science fiction author Robert A. Heinlein. It was first published in the April 1941 issue of "Unknown", and can be found in Heinlein's short story collection "The Unpleasant Profession of Jonathan Hoag". It also appears in a number of multi-author anthologies.
They was published in the year after 1939.
They was published in 1941. The system was confused by the year.