Comic Title: Superman #50
Publisher: DC (DC Comics Inc.)
Address: 666 Fifth Avenue, New York, NY
Cover Date: December 1990
On Sale Date: October 23, 1990 Shipping Date October 23, 1990
Source: Previews, #20

Shipping Date October 23, 1990
Source: Amazing Heroes, #184

Copyright Date October 23, 1990
Source: Library of Congress, Copyright Office 1990

Shipping Date October 25, 1990
Source: Advance Comics, #22

Direct Market Date October 25, 1990
Source: Comic Shop News, #174

Frequency: Monthly
Cover Price: $1.50
Page Count: 48
Editor: Mike Carlin

Title: "The Human Factor"
Pages: 38

Feature(s):
Superman (Post-Crisis)

Writer/Artist: Jerry Ordway
Penciller: Dan Jurgens
Penciller: Kerry Gammill
Penciller: Curt Swan
Artist: John L. Byrne
Inker: Brett Breeding
Inker: Dennis Janke
Letterer: John Costanza
Colorist: Glenn Whitmore

Reprinted In:
Superman:Krisis of the Krimson Kryptonite TPB (1996)

Feature Character(s)

• Superman (last appearance in Action Comics #659; next appearance in Adventures of Superman #473)

Supporting Character(s)

• Lois Lane (last appearance in Action Comics #659; next appearance in Adventures of Superman #473)
• Perry White (last appearance in Superman #49; next appearance in Adventures of Superman #473)
• Jimmy Olsen (last appearance in Adventures of Superman Annual #2; next appearance in Adventures of Superman #473)
• Guardian (last appearance in Action Comics #659; next appearance in Superman #54)
• Gangbuster (last appearance in Action Comics #659; next appearance in Superman #51)
• Catherine Grant (last appearance in Action Comics #658; next appearance in Adventures of Superman #473)
• Lucy Lane (last appearance in Adventures of Superman #472; next appearance in Action Comics #661)
• Alice White (last appearance in Superman #49; no further appearances)
• Martha Kent (on the telephone; last appearance in Adventures of Superman #469; no further appearances)

Villain(s)

• Lex Luthor (last appearance in Action Comics #659; no further appearances)
• Mr. Mxyzptlk (last appearance in Action Comics #659; no further appearances)
• Lexcorp security guards (no further appearances)
• A giant rat (no further appearances)

Other Character(s)

• Sam Lane (last appearance in Adventures of Superman #472; no further appearances)
• Gretchen Kelley (last appearance in Action Comics #656; next appearance in Action Comics #660)
• Sarah Olsen (last appearance in Superman #45; next appearance in Superman #54)
• Elinore Lane (last appearance in Adventures of Superman #433; no further appearances)
• Alice (last appearance in Superman #49; no further appearances)
• Stand-Ins for the Fantastic Four (no further appearances)
• Steve Lombard (last appearance in Adventures of Superman #467; no further appearances)
• Duke (a newsdealer; no further appearances)
• Several subway passengers (no further appearances)
• Kevin (a waiter at Dooley's; no further appearances)
• A cab driver (no further appearances)
• Security guards from the Project (no further appearances)

Cameo Appearance(s)

• Emil Hamilton (in flashback)
• Barrage (in flashback)
• Starman (in flashback)
• Jerry White (in a photograph)

Comments:
Krisis of the Krimson Kryptonite Part Four

This story is continued from Action Comics #659.

Clark and Lois become engaged in this story.

Mr. Mxyzptlk is shown in a universe similar to the Marvel Universe where he is a doppelganger of the Impossible Man.

Several DC Comics staffers are depicted in crowd scenes, but they are not identified by name.

Synopsis:
After Clark Kent fails to get a meeting with Lex Luthor, he returns to the Daily Planet to take Lois Lane to lunch. He proposes to Lois. Their conversation is interrupted by a call from Lex Luthor. Clark tells Luthor that he has the Red Kryptonite and agree to a meeting. Clark brings the Kryptonite to Luthor's office and learns that Mxyzptlk was responsible for its creation. By telling Clark, Lex breaks the imp's rules about not telling Superman. As a result, Superman gets his powers back. He then bests Mxyzptlk who grow a giant body from one of Luthor's skin cells.

After the fight, Clark finds Lois at the hospital where she has been visiting with her mother. Lois accepts Clark's proposal, and the couple are officially engaged.