The temperature on March 6, 1912 was between 3.9 °C and 8.3 °C and averaged 5.6 °C. There was 7.0 mm of rain. There was 0.7 hours of sunshine (6%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
April 17 » Russian troops open fire on striking goldfield workers in northeast Siberia, killing at least 150.
September 28 » Corporal Frank S. Scott of the United States Army becomes the first enlisted man to die in an airplane crash.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
October 18 » First Balkan War: King Peter I of Serbia issues a declaration "To the Serbian People", as his country joins the war.
October 26 » First Balkan War: The Ottomans lose the cities of Thessaloniki and Skopje.
December 16 » First Balkan War: The Royal Hellenic Navy defeats the Ottoman Navy at the Battle of Elli.
Day of marriage February 25, 1939
The temperature on February 25, 1939 was between 2.3 °C and 7.3 °C and averaged 4.7 °C. There was 4.4 mm of rain during 7.3 hours. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. 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.
September 1 » Adolf Hitler signs an order to begin the systematic euthanasia of mentally ill and disabled people.
September 18 » World War II: The Polish government of Ignacy Mościcki flees to Romania.
September 19 » World War II: The Battle of Kępa Oksywska concludes, with Polish losses reaching roughly 14% of all the forces engaged.
September 22 » World War II: A joint German–Soviet military parade in Brest-Litovsk is held to celebrate the successful invasion of Poland.
October 15 » The New York Municipal Airport (later renamed LaGuardia Airport) is dedicated.
November 4 » World War II: U.S. President Franklin D. Roosevelt orders the United States Customs Service to implement the Neutrality Act of 1939, allowing cash-and-carry purchases of weapons by belligerents.
Day of death May 18, 1995
The temperature on May 18, 1995 was between 1.7 °C and 10.3 °C and averaged 7.6 °C. There was 3.7 mm of rain during 5.8 hours. There was 0.5 hours of sunshine (3%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-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.
January 25 » The Norwegian rocket incident: Russia almost launches a nuclear attack after it mistakes Black Brant XII, a Norwegian research rocket, for a US Trident missile.
February 21 » Steve Fossett lands in Leader, Saskatchewan, Canada becoming the first person to make a solo flight across the Pacific Ocean in a balloon.
April 7 » First Chechen War: Russian paramilitary troops begin a massacre of civilians in Samashki, Chechnya.
July 25 » A gas bottle explodes in Saint Michel station of line B of the RER (Paris regional train network). Eight are killed and 80 wounded.
September 22 » An E-3B AWACS crashes outside Elmendorf Air Force Base, Alaska after multiple bird strikes to two of the four engines soon after takeoff; all 24 on board are killed.
November 13 » Mozambique becomes the first state to join the Commonwealth of Nations without having been part of the former British Empire.
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/I112914.php : accessed October 24, 2026), "Sikke Helder (1912-1995)".
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