She had a series featured in The Superman Family comic book from 1974 to 1982.
After Clark Kent joined the paper and Superman debuted around the same time, Lois found herself attracted to Superman but displeased with her new journalistic competition in the form of Kent.
Starting early as the 1940s, Lois began to suspect that Clark Kent was Superman, and started to make various attempts at uncovering his secret identity, all of which backfired usually thanks to Superman's efforts.
In other media, she's been shown with dark blonde hair on the television series Smallville and red hair in the 2013 film Man of Steel.
In the 1940s, Lois had her own newspaper comic strip, Lois Lane, Girl Reporter, a direct spin-off of the Superman comic strip running at the time.
The character was most recently portrayed by actress Amy Adams in the DC Extended Universe films.