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Events on Monday 1 April 1940 2
1940Katyń MassacreWar CrimeMass execution of Polish officers and intelligentsia by the Soviet NKVD.
1940 – 2011Wangari Maathai (1940-2011)Died 25 September 2011, aged 71The Kenyan environmentalist founded the Green Belt Movement, which planted tens of millions of trees across Africa, and became the first African woman to win the Nobel Peace Prize, in 2004. She died in Nairobi of ovarian cancer. She was also a member of the Kenyan parliament and a prominent democracy activist.