January 1 » Nigeria becomes a British protectorate.
February 15 » The association football club Alianza Lima is founded in Lima, Peru, under the name Sport Alianza.
May 9 » Australia opens its first national parliament in Melbourne.
September 6 » Leon Czolgosz, an unemployed anarchist, shoots and fatally wounds US President William McKinley at the Pan-American Exposition in Buffalo, New York.
October 29 » In Amherst, Massachusetts, nurse Jane Toppan is arrested for murdering the Davis family of Boston with an overdose of morphine.
December 10 » The first Nobel Prize ceremony is held in Stockholm on the fifth anniversary of Alfred Nobel's death.
Day of death May 31, 1971
The temperature on May 31, 1971 was between 8.5 °C and 22.7 °C and averaged 16.7 °C. There was 7.1 hours of sunshine (43%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 25 » Idi Amin leads a coup deposing Milton Obote and becomes Uganda's president.
February 2 » The international Ramsar Convention for the conservation and sustainable utilization of wetlands is signed in Ramsar, Mazandaran, Iran.
February 15 » The decimalisation of British coinage is completed on Decimal Day.
May 30 » Mariner program: Mariner 9 is launched to map 70% of the surface, and to study temporal changes in the atmosphere and surface, of Mars.
September 15 » The first Greenpeace ship sets sail to protest against nuclear testing on Amchitka Island.
November 10 » In Cambodia, Khmer Rouge forces attack the city of Phnom Penh and its airport, killing 44, wounding at least 30 and damaging nine aircraft.
When copying data from this family tree, please include a reference to the origin: M. Beeksma, "Family tree Beeksma", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-beeksma/I113.php : accessed February 21, 2026), "hasseltje bakker (1901-1971)".
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