The temperature on January 20, 1912 was between -2.3 °C and 7.0 °C and averaged 0.3 °C. There was 6.7 hours of sunshine (79%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
February 14 » Arizona is admitted as the 48th and the last contiguous U.S. state.
April 2 » The ill-fated RMSTitanic begins sea trials.
April 15 » The British passenger liner RMSTitanic sinks in the North Atlantic at 2:20a.m., two hours and forty minutes after hitting an iceberg. Only 710 of 2,227 passengers and crew on board survive.
May 4 » Italy occupies the Greek island of Rhodes.
September 28 » The Ulster Covenant is signed by some 500,000 Ulster Protestant Unionists in opposition to the Third Irish Home Rule Bill.
October 19 » Italo-Turkish War: Italy takes possession of what is now Libya from the Ottoman Empire.
Day of marriage October 29, 1936
The temperature on October 29, 1936 was between 2.6 °C and 13.4 °C and averaged 7.5 °C. There was 5.9 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
March 7 » Prelude to World War II: In violation of the Locarno Pact and the Treaty of Versailles, Germany reoccupies the Rhineland.
March 16 » Warmer-than-normal temperatures rapidly melt snow and ice on the upper Allegheny and Monongahela rivers, leading to a major flood in Pittsburgh.
June 28 » The Japanese puppet state of Mengjiang is formed in northern China.
August 1 » The Olympics opened in Berlin with a ceremony presided over by Adolf Hitler.
December 13 » An annular solar eclipse occurred and was visible from Australia, New Zealand on December 14th (Monday), and Oeno Island in Pitcairn Islands on December 13th (Sunday).
December 23 » Spanish Civil War: The Spanish Republic legalizes the Regional Defence Council of Aragon.
Day of death May 31, 1966
The temperature on May 31, 1966 was between 5.7 °C and 14.6 °C and averaged 10.9 °C. There was 0.5 mm of rain during 1.8 hours. There was 2.3 hours of sunshine (14%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
February 26 » Apollo program: Launch of AS-201, the first flight of the Saturn IB rocket
July 6 » Malawi becomes a republic, with Hastings Banda as its first President.
July 15 » Vietnam War: The United States and South Vietnam begin Operation Hastings to push the North Vietnamese out of the Vietnamese Demilitarized Zone.
August 23 » Lunar Orbiter 1 takes the first photograph of Earth from orbit around the Moon.
November 4 » The Arno River floods Florence, Italy, to a maximum depth of 6.7m (22ft), leaving thousands homeless and destroying millions of masterpieces of art and rare books. Also Venice was submerged on the same day at its record all-time acqua alta of 194cm (76in).
December 8 » The Greek ship SSHeraklion sinks in a storm in the Aegean Sea, killing over 200.
When copying data from this family tree, please include a reference to the origin: Dirk Zwinderman, "Family tree Zwinderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-zwinderman/I5513.php : accessed February 14, 2026), "Trientje Zwier (1912-1966)".
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