Comic Title: Green Lantern #66
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: January 1969
On Sale Date: November 26, 1968 Newsstand Date November 26, 1968
Source: House Ad, Batman #208, Page 79

Copyright Date November 26, 1968
Source: Library of Congress, Periodicals 1969

Newsstand Date November 26, 1968
Source: Comic Reader, #70

Newsstand Date November 26, 1968
Source: Newsdealer Magazine, V23 #9

Frequency: Monthly, with the exception of Feb., May, Aug., and Nov.
Cover Price: $0.12
Page Count: 32
Editor: Julius Schwartz

Title: "5708 A.D.... a Nice Year to Visit -- But I Wouldn't Want to Live Then"
Pages: 23

Feature(s):
Green Lantern (Hal Jordan of Earth-1)

Writer: John Broome
Penciller: Mike Sekowsky
Inker: Joe Giella

Reprinted In:
Showcase Presents:Green Lantern Vol. 4 TPB (2009)
Green Lantern:The Silver Age Omnibus Vol. 2 HC (2018)

Feature Character(s)

• Green Lantern (last appearance in Justice League of America #68; next appearance in Green Lantern #67)

Supporting Character(s)

• Chairman Dasor (last appearance in Green Lantern #51; next appearance in Green Lantern #136)
• Iona Vane (last appearance in Green Lantern #51; next appearance in Green Lantern #136)

Villain(s)

• A malevolent computer intelligence (no further appearances)
• Gudron and Vortan (agents created by the computer; no further appearances)

Other Character(s)

• The high council and Citizens of 58th century Star City (last appearance in Green Lantern #51; next appearance in Green Lantern #136)

Synopsis:
Green Lantern returns to the future era which he has often visited and is reunited with Dasor and Iona Vane. They explain that machines are now performing all the work on the planet, and humans are allowed to relax. GL discovers that the people including Dasor and Vane are under the control of an alien named Gudron. When defeated Gudron disintegrates, and the people are free from his control.

Green Lantern attempts to return to his own time period, but an unseen force stops him. When he consults Iona and Dasor, he discovers them hypnotized again. This time the culprit is Gudron's boss, Vortan. GL defeats him too, then realizes that both aliens were created by a computer than has achieved independent intelligence. Green Lantern destroys the computer, permanently ending the threat, before returning to his own time period.