From top to bottom, here are Nickelodeon's siblings from each year, but it's the 2009 version of them.
Nickelodeon: Born in April 1, 1979.
Nick at Nite: Born in July 1, 1985.
Nick Jr: Born in January 4, 1988.
Teen Nick: Born in March 4, 2001.
Nicktoons: Born in May 1, 2002.
I'll add Nick Rewind someday.
