2004 - The Batman new animated TV series where Catwoman is voiced by Gina Gershon. This series is still on going.
2002 - Catwoman's second comic book series makes its debut with a complete new outfit for the feline felon. Also the WB's Birds of Prey TV Series premieres where The Huntress is Helena Kyle the secret child of Batman and Catwoman. Catwoman is played by Maggie Baird but is only shown in flash backs and trailers.
2001 - After 96 issues the Catwoman's first comic book series comes to an end.
2000 - The first time the modern Catwoman ever got caught and was sentenced.
1994 - Catwoman's comic origin is retold complete with the death of her mother and father and her childhood growing up. After a few years without appearing in any episodes of the animated series Catwoman pops up in "Batgirl Returns."
1993 - Catwoman recieves her own comic book series.
1992 - Batman Returns hits the theaters with Michelle Pfeiffer as Selina Kyle. Also this year Batman the Animated Series hits debuts with Catwoman in an outfit obviously inspired by the movie and is voiced by Adrienne Barbeau.
1989 - Modern Catwoman's origin is revamped in her own four part miniseries.
1987 - The modern version of Catwoman first appears in Batman #404.
1985 - Crisis on Infinite Earths happens and as a result Selina's history is altered.
1977 - On Earth-2 Bruce and Selina are married, and a new animated series hits televisions; The New Adventures of Batman. Catwoman is voiced by Melendy Britt in the new series.
1968 - The Batman/Superman Hour hits the airwaves; Catwoman is voiced by Jane Webb.
1967 - Catwoman was first drawn in a green outfit inspired from the TV series. Why green? I do not know.
1966 - The live action Batman TV series is first shown where Catwoman is played by Julie Newmar and Ertha Kitt during it's two year time. Also that year a Batman movie based on the TV series hits the theaters, Catwoman is played by Lee Meriwether there.
1952 - We find out Selina has a brother named Karl who debuts as "Catman" otherwise known as The King of Cats.
1951 - The origin of Catwoman is first told in "The Secret Life of the Catwoman!" (Batman #62). This is also the first issue that her real name is revealed.
1947 - Catwoman adopted the classic purple dress and green cape she would wear on and off for years to come. And Batman #35 becomes the first comic where Catwoman is mentioned by name.
1942 - The Cat officially becomes the Catwoman.
1940 - Selina makes her first appearance in Batman #1 as The Cat (though not officially named until later that year).