The temperature on September 21, 1912 was between 2.5 °C and 15.1 °C and averaged 9.0 °C. There was 9.5 hours of sunshine (77%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
March 12 » The Girl Guides (later renamed the Girl Scouts of the USA) are founded in the United States.
April 14 » The British passenger liner RMSTitanic hits an iceberg in the North Atlantic at 23:40 (sinks morning of April 15th).
September 28 » The Ulster Covenant is signed by some 500,000 Ulster Protestant Unionists in opposition to the Third Irish Home Rule Bill.
November 27 » Spain declares a protectorate over the north shore of Morocco.
December 16 » First Balkan War: The Royal Hellenic Navy defeats the Ottoman Navy at the Battle of Elli.
Day of marriage May 9, 1930
The temperature on May 9, 1930 was between -0.7 °C and 12.4 °C and averaged 6.9 °C. There was 0.7 mm of rain during 0.3 hours. There was 6.3 hours of sunshine (41%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 6 » The first diesel-powered automobile trip is completed, from Indianapolis, Indiana, to New York, New York.
February 10 » The Việt Nam Quốc Dân Đảng launches the failed Yên Bái mutiny in hope to overthrow French protectorate over Vietnam.
April 22 » The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
May 27 » The 1,046 feet (319m) Chrysler Building in New York City, the tallest man-made structure at the time, opens to the public.
September 17 » The Kurdish Ararat rebellion is suppressed by the Turks.
October 27 » Ratifications exchanged in London for the first London Naval Treaty go into effect immediately, further limiting the expensive naval arms race among its five signatories.
Day of death May 15, 1989
The temperature on May 15, 1989 was between 4.9 °C and 21.5 °C and averaged 14.1 °C. There was 12.1 hours of sunshine (77%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 20 » George H. W. Bush is inaugurated the 41st President of the United States of America.
April 15 » Upon Hu Yaobang's death, the Tiananmen Square protests of 1989 begin in China.
June 7 » Surinam Airways Flight 764 crashes on approach to Paramaribo-Zanderij International Airport in Suriname because of pilot error, killing 176 of 187 aboard.
August 23 » Singing Revolution: Two million people from Estonia, Latvia and Lithuania stand on the Vilnius–Tallinn road, holding hands.
December 16 » U.S. Appeals Court Judge Robert Smith Vance is assassinated by a mail bomb sent by Walter Leroy Moody, Jr.
December 17 » Romanian Revolution: Protests continue in Timișoara, Romania, with rioters breaking into the Romanian Communist Party's District Committee building and attempting to set it on fire.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I93266.php : accessed October 9, 2026), "Hendrikje Jongsma (1912-1989)".
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