If you would care enough to read anything, even her Wikipedia page, you could find out quite easily.
One of the factors may have been that her husband had been cheating on her for some time, but this also wasn't the first time she'd attempted suicide. She was a very tortured person, for many reasons, and she had a history of depression.
(Sorry for the person that answered previously, but current events of that time, I believe had nothing to do with it)
Sylvia Plath was 30 years old when she killed herself.
Sylvia Plath was raised in a Christian Science household, but later in life she rejected organized religion and considered herself an atheist.
Sylvia Plath is 5' 9".
Yes. She knew her father for only eight years. She related to her husband as a father for eight years, then killed herself.
Sylvia Plath's maiden name was Sylvia Plath. She did not have a different last name before she was married.
Sylvia Plath went by the nickname "Sivvy" with her family and close friends.
Sylvia Plath Sylvia Plath
Sylvia Plath was born on October 27, 1932.
A Better Resurrection by Sylvia Plath was written in 1959.
Sylvia Plath died February 11, 1963.
Sylvia Plath died on February 11, 1963 at the age of 30.
Sylvia Plath (1932-1963) lived to be 31 years old.