context: Wangari Muta Maathai (1 April 1940 - 25 September 2011) was an activist for environmental issues and women's rights from Kenya. The year 2004 was the winner of the Nobel Peace Prize. [1] She is the first African woman to receive the award. He also served as Kenyan MP and assistant minister in the Mwai Kibaki government from January 2003 to November 2005.
question: In what year did Wangari Maathai receive the Nobel Prize?
answers.text: 2004