Mxypyxm is my name! Ha ha!... I'll say it backward for you... Mxypyxm! 
Superboy #120 is an issue of the series Superboy (Volume 1) with a cover date of April, 1965.
Synopsis for "The Fate of the Future Superman!"
Superboy is drawn across time to the 35th Century to help out Jirl Xanthro, proprietor of a Museum of the Twentieth Century. Since his business is being badly hurt by the Superman Museum, operated by the 35th Century descendant of Lex Luthor, he asks for and receives help in making movies which recreate some of Superboy's 20th Century deeds.
In revenge, Luthor XXX invites Superboy into his museum and attempts to con him, via a fake exhibit, into believing that his 35th Century descendant is really a criminal and has been executed by Green Kryptonite. (In reality, Superman XXX is a hero.)
At first, Superboy is convinced, when he returns to his native era, that the future Luthor has shown him the truth. But a consultation with his still-friendly Lex Luthor leads Superboy to conclude that the future Luthor was hoodwinking him. His conscience is cleared, though his memory of the future fades after a week.
Appearing in "The Fate of the Future Superman!"
Featured Characters:
Supporting Characters:
- Jirl Xanthro
- Superman XXX
- Lex Luthor
Antagonists:
- Lex Luthor XXX
Other Characters:
- Geneology Society
- Jimmy Olsen (Statue only)
- Superman (Statue only)
- Lois Lane (Statue only)
- Perry White (Statue only)
Locations:
- 20th Century
- 3446
- Museum of the Twentieth Century
- Superman Museum
- Time Barrier
Items:
- 3D Mirage Materializer Helmet
- 4th Dimensional Movie Camera
- Green Kryptonite (3-D Mirage)
- Red Kryptonite (3-D Mirage)
- Time Monitor
Vehicles:
- 20th Century Museum Vehicles
- Space Capsule
- "Yankee Spirit" Runaway train
Synopsis for "Superbaby's Golden Quest!"
When Jonathan Kent misplaces his gold cufflinks, Superbaby goes into the past in search of gold. He encounters an ancient king, the baby Achilles, and James Marshall (who discovered gold at Sutter's Mill in California in 1849) and brings a large gold nugget back to Jonathan. The elder Kent appreciates it, but as evidence of Clark's superpowers, he tells Clark to throw the gold away.
Appearing in "Superbaby's Golden Quest!"
Featured Characters:
Supporting Characters:
Antagonists:
Other Characters:
- Achilles
- Esau
- James W. Marshall
- Jason (Mentioned only)
- King Solomon (Mentioned only)
- King Wyllyam the Wise
- Thetis
Locations:
- Smallville
- Time Barrier
- 1848
- California
- Sutter's Mill
- California
- 900 BCE
- 1300 BCE
- Colchis
- River Styx
- 1848
- Krypton (Mentioned only)
Items:
- Dragon
- Golden Fleece
Synopsis for "The Invulnerable Imp!"
Mister Mxyzptlk legally changes his name to Mxypyxm, a palindrome, which reads the same backwards as forwards. Thus, Superboy is unable to send him back into his own dimension until he doses Mxyzptlk with Amnesium, which forces "Mxypyxm" to revert to his given name and return to the 5th Dimension.
Appearing in "The Invulnerable Imp!"
Featured Characters:
Supporting Characters:
Antagonists:
- Master Mxyzptlk (First appearance as Mxypyxm)
Other Characters:
- Mr. Mayor
- General Arthur Mxyzptlk (In picture only)
- Judge (5th Dimension Courtroom)
- Sir Garamore Mxyzptlk (In picture only)
Locations:
- Fifth Dimension
- Zrfff
- Courtroom
- Zrfff
- Smallville
- Kent Farm
- Smallville Grade School
- Theatre
Items:
- Amnesium
- Diamonds
- Gold
Vehicles:
- Horse-Drawn Carriage
- Roadstar
Notes
- Superboy travels 1500 years into the future to 3446 A.D. It could be assumed that the year he comes from is 1946.
- After returning from the future in "The Fate of the Future Superman!", Superboy forgets all he's learned after one week. Thus he forgets that his friend Lex Luthor will become a criminal mastermind.
Trivia
- Superboy explains that he is not affected by Amnesium because he is invulnerable.
See Also