Above: poses from ACTION COMICS and WONDER COMICS, from the actual 1939 case file.
What do you do when your boss tells you to lie under oath? If you are young Will Eisner, you tell the truth and to hell with the consequences.
When Victor Fox saw how well DC Comics' SUPERMAN was selling, he instructed Will Eisner and Jerry Iger to copy the Man of Steel. They did. Fox, a rival publisher to DC, then began publishing a comic called WONDER MAN.
DC sued, and it was Eisner's testimony that won the case for them. He said "that Fox literally instructed Eisner & Iger to copy Superman."
Until now, the court transcripts for this 1939 case were deemed lost, but Ken Quattro got them and Eisner's testimony is here.