Saro-Wiwa had previously been a critic of the Royal Dutch Shell oil corporation, and had been imprisoned for a year prior to the executions in November 1995.
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The Ogoni Nine were a group of nine activists from the Ogoni region of Nigeria, including outspoken author and playwright Ken Saro-Wiwa, Saturday Dobee, Nordu Eawo, Daniel Gbooko, Paul Levera, Felix Nuate, Baribor Bera, Barinem Kiobel, and John Kpuine (Tripathi, p.189), who were executed by hanging in 1995 by the military dictatorship of General Sani Abacha.