February 28 » Queen Ranavalona III, the last monarch of Madagascar, is deposed by a French military force.
April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of death September 23, 1970
The temperature on September 23, 1970 was between 5.1 °C and 16.6 °C and averaged 10.4 °C. There was 6.1 hours of sunshine (50%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
April 10 » Paul McCartney announces that he is leaving The Beatles for personal and professional reasons.
April 17 » Apollo program: The ill-fated Apollo 13 spacecraft returns to Earth safely.
April 28 » Vietnam War: U.S. President Richard Nixon formally authorizes American combat troops to take part in the Cambodian campaign.
August 17 » Venera program: Venera 7 launched. It will later become the first spacecraft to successfully transmit data from the surface of another planet (Venus).
August 26 » A new feminist movement leads a nationwide Women's Strike for Equality.
November 10 » Vietnam War: Vietnamization: For the first time in five years, an entire week ends with no reports of American combat fatalities in Southeast Asia.
When copying data from this family tree, please include a reference to the origin: Frans Chodzynski, "Family tree Chodzynski", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-chodzynski/I2576.php : accessed January 22, 2026), "Riemke Watzes Stielstra (1897-1970)".
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