|Definition||a planet orbiting a star at the edge, or rim, of the galaxy|
|OED requirements||antedating 1957|
|Earliest cite||Robert A. Heinlein, "Citizen of the Galaxy"|
|Comment||Treesong submitted a 1959 cite from Bertram Chandler.
Douglas Winston submitted a 1977 cite from Colin Kapp's "The Chaos Weapon".
Douglas Winston submitted a 1965 cite for the form "Rim world" from John Brunner's "The Altar on Asconel".
Douglas Winston submitted a cite from a 1984 reprint of Jane Yolen's 1982 "Dragon's Blood".
Dan Tilque suggested "Rimworld Legacy" by F.A Javor, and Douglas Winston submitted cites from the 1967 first printing.
Irene Grumman submitted a 1962 cite from Michael Moorcock's "The Sundered Worlds".
Fred Galvin submitted a cite for "Rim world" from a reprint of Robert A. Heinlein's "Citizen of the Galaxy": Mike Christie verified this in its original publication in Astounding Science Fiction, November 1957.
|Last modified||9 July, 2009|
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|1957 R. A. Heinlein Citizen of Galaxy in Astounding Science Fiction Nov. 125/2||Hydra was cruising above speed-of-light toward the Rim world Ultima Thule, where she would refuel and start prowling for outlaws.|
|1959 Astounding Sci. Fiction Jan. 9/1||So this, he thought, is Lorn, industrial hub of the Rim Worlds. This is as far as I go. This is where I get off. There's no farther to go.|
|1959 Astounding Sci. Fiction Jan. 9/2||How much of this is sheer masochism, this flight from the warm, happy worlds of the Center to these Rim planets?|
|1959 Astounding Sci. Fiction Jan. 12/1||They don't like Deep Space, these Rim Worlders. They're scared of it. I suppose that it's because for all their lives they've been hanging over the edge of the ultimate pit by their eyebrows.|
|1962 M. Moorcock Sundered Worlds Nov.–Dec. 7||Two years previously Renark had suddenly resigned from his position as Warden of the Rim Worlds.|
|1965 J. Brunner Altar on Asconel iii. 20||The Empire never embraced the whole of the galaxy, though people generally assume it did. It could be a Rim world, some distance from the hub.|
|1967 F. A. Javor Rim-world Legacy xxii. 96||Rook was like so many of our rim-world people, given to much thinking, much brooding, much pondering upon the fact of his existence.|
|1977 C. Kapp Chaos Weapon iii. 30||That argument sounds convincing to us, but I doubt if it would cut much ice on a Rim world before the alien threat became a reality.|
|1982 J. Yolen Dragon's Blood xii||Betting syndicates developed, and starship crews on long rim-world voyages began to frequent the planets for illicit gambling.|