The temperature on April 11, 1911 was between 0.6 °C and 11.7 °C and averaged 6.0 °C. There was 0.1 mm of rain. There was 9.1 hours of sunshine (67%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
June 22 » George V and Mary of Teck are crowned King and Queen of the United Kingdom of Great Britain and Ireland.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
September 29 » Italy declares war on the Ottoman Empire.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
Day of marriage January 25, 1939
The temperature on January 25, 1939 was between 1.4 °C and 4.8 °C and averaged 3.0 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
May 22 » World War II: Germany and Italy sign the Pact of Steel.
July 28 » The Sutton Hoo helmet is discovered.
August 15 » The Wizard of Oz premieres at Grauman's Chinese Theater in Los Angeles, California.
October 1 » World War II: After a one-month siege, German troops occupy Warsaw.
December 12 » HMSDuchess sinks after a collision with HMSBarham off the coast of Scotland with the loss of 124 men.
December 14 » Winter War: The Soviet Union is expelled from the League of Nations for invading Finland.
Day of death April 9, 1997
The temperature on April 9, 1997 was between 3.2 °C and 18.1 °C and averaged 10.1 °C. There was 9.5 hours of sunshine (71%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
February 22 » In Roslin, Midlothian, British scientists announce that an adult sheep named Dolly has been successfully cloned.
May 15 » The United States government acknowledges the existence of the "Secret War" in Laos and dedicates the Laos Memorial in honor of Hmong and other "Secret War" veterans.
June 16 » Fifty people are killed in the Daïat Labguer (M'sila) massacre in Algeria.
June 26 » The U.S. Supreme Court rules that the Communications Decency Act violates the First Amendment to the United States Constitution.
July 27 » About 50 people are killed in the Si Zerrouk massacre in Algeria.
December 22 » Hussein Farrah Aidid relinquishes the disputed title of President of Somalia by signing the Cairo Declaration, in Cairo, Egypt. It is the first major step towards reconciliation in Somalia since 1991.
When copying data from this family tree, please include a reference to the origin: Eva Drenth, "Family tree Diverse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-drenth/I18266.php : accessed February 16, 2026), "Siebe Jelle Snip (1911-1997)".
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