Ellen Johnson Sirleaf l Leymah Gbowee l Tawakkol Karman l Nobel Peace Prize 2011

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2011 Nobel Peace Prize winners Tawakkol Karman of Yemen (l), Liberian peace activist Leymah Gbowee (c) and Liberian president Ellen Johnson-Sirleaf. Image by John McConnico/AP

Wangari Maathai, 2004 Nobel Peace Prize Winner In Death Reminds Us: Be A Hummingbird

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Wangari Maathai, 2004 Nobel Peace Prize Winner In Death Reminds Us: Be A Hummingbird

Kenyan environmentalist and 2004 Nobel Peace Prize winner Wangari Maathai died late Sunday from cancer. At 71, Mrs Maathai was one of the most widely respected women in Africa, wearing many hats as an environmentalist, feminist, politician, rabble-rouser, human rights advocate and head of the Green Belt Movement.