Here's the news article from the San Francisco Chronicle...
Porn Star Marilyn Chambers Dies at 56
While Chambers was best known for her career as a pornographic actress, she was also known for having been the Ivory Snow girl first. My first exposure to porn came when I was 17 years old, and saw Chambers in the film Behind the Green Door, and it was an eye-opening experience, to say the least. That movie, along with Deep Throat, launched the "porno chic" period, but I didn't get to see that movie until several years later.
In any event, Marilyn Chambers had a colourful, somewhat chequered, career, and for that reason her life and death are notable events.
R.I.P. Marilyn Chambers (1952-2009)