The temperature on June 20, 1912 was between 13.2 °C and 18.0 °C and averaged 15.8 °C. There was 3.2 mm of rain. There was 5.9 hours of sunshine (35%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 23 » The International Opium Convention is signed at The Hague.
February 25 » Marie-Adélaïde, the eldest of six daughters of Guillaume IV, becomes the first reigning Grand Duchess of Luxembourg.
April 20 » Opening day for baseball's Tiger Stadium in Detroit, and Fenway Park in Boston.
June 30 » The Regina Cyclone, Canada's deadliest tornado event, kills 28 people in Regina, Saskatchewan.
December 3 » Bulgaria, Greece, Montenegro, and Serbia (the Balkan League) sign an armistice with the Ottoman Empire, temporarily halting the First Balkan War. (The armistice will expire on February 3, 1913, and hostilities will resume.)
December 19 » William Van Schaick, captain of the steamship General Slocum which caught fire and killed over one thousand people, is pardoned by U.S. President William Howard Taft after 3⁄2 years in Sing Sing prison.
Day of death April 6, 1971
The temperature on April 6, 1971 was between 5.0 °C and 8.6 °C and averaged 6.8 °C. There was 0.3 mm of rain during 0.8 hours. The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
February 26 » U.N. Secretary-General U Thant signs United Nations proclamation of the vernal equinox as Earth Day.
April 19 » Charles Manson is sentenced to death (later commuted to life imprisonment) for conspiracy in the Tate–LaBianca murders.
June 7 » The United States Supreme Court overturns the conviction of Paul Cohen for disturbing the peace, setting the precedent that vulgar writing is protected under the First Amendment to the United States Constitution.
September 3 » Qatar becomes an independent state.
October 1 » The first practical CT scanner is used to diagnose a patient.
October 29 » In Macon, Georgia, guitarist Duane Allman is killed in a motorcycle accident.
When copying data from this family tree, please include a reference to the origin: Coos van Spijk, "Family tree of Spijk and her many ancestors", database, Genealogy Online (https://www.genealogieonline.nl/van-spijk-stamboom/I96853.php : accessed February 25, 2026), "Arend van den Oever (1912-1971)".
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