10 November 1995,
Nigerian dictator Sani Abacha hanged nine people from the town of Ogoni. They were members of the Ogoni People's Survival Movement, including the famous writer Ken Saro-Wiwa, very uncomfortable for the government.
The people of Ogoni were in a long battle to denounce that the oil company Shell contaminated their lands and stole resources.
Source:
Josep Fontana, For the Sake of Empire (Past and Present).