The temperature on December 9, 1917 was between 0.3 °C and 5.4 °C and averaged 3.7 °C. There was 5.8 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 22 » World War I: President Woodrow Wilson of the still-neutral United States calls for "peace without victory" in Europe.
July 28 » The Silent Parade took place in New York City, in protest to murders, lynchings, and other violence directed towards African Americans.
November 24 » In Milwaukee, nine members of the Milwaukee Police Department are killed by a bomb, the most deaths in a single event in U.S. police history until the September 11 attacks in 2001.
November 25 » World War I: German forces defeat Portuguese army of about 1,200 at Negomano on the border of modern-day Mozambique and Tanzania.
December 15 » World War I: An armistice between Russia and the Central Powers is signed.
December 20 » Cheka, the first Soviet secret police force, is founded.
Day of marriage December 21, 1944
The temperature on December 21, 1944 was between 2.6 °C and 5.5 °C and averaged 4.0 °C. There was 1.5 mm of rain during 1.7 hours. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 7 » World War II: In Anzio, Italy, German forces launch a counteroffensive during the Allied Operation Shingle.
March 9 » World War II: Soviet Army planes attack Tallinn, Estonia.
June 20 » World War II: The Battle of the Philippine Sea concludes with a decisive U.S. naval victory. The lopsided naval air battle is also known as the "Great Marianas Turkey Shoot".
July 17 » Port Chicago disaster: Near the San Francisco Bay, two ships laden with ammunition for the war explode in Port Chicago, California, killing 320.
July 22 » The Polish Committee of National Liberation publishes its manifesto, starting the period of Communist rule in Poland.
September 19 » World War II: The Battle of Hürtgen Forest begins. It will become the longest individual battle that the U.S. Army has ever fought.
Day of death July 30, 1999
The temperature on July 30, 1999 was between 14.3 °C and 29.6 °C and averaged 23.1 °C. There was 13.3 hours of sunshine (85%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
May 3 » The southwestern portion of Oklahoma City is devastated by an F5 tornado, killing forty-five people, injuring 665, and causing $1billion in damage. The tornado is one of 66 from the 1999 Oklahoma tornado outbreak. This tornado also produces the highest wind speed ever recorded, measured at 301 +/- 20mph (484 +/- 32km/h).
May 6 » The first elections to the devolved Scottish Parliament and Welsh Assembly are held.
May 7 » Kosovo War: Three Chinese citizens are killed and 20 wounded when a NATO aircraft apparently inadvertently bombs the Chinese embassy in Belgrade, Serbia.
June 12 » Kosovo War: Operation Joint Guardian begins when a NATO-led United Nations peacekeeping force (KFor) enters the province of Kosovo in Federal Republic of Yugoslavia.
August 15 » Beni Ounif massacre in Algeria: Some 29 people are killed at a false roadblock near the Moroccan border, leading to temporary tensions with Morocco.
August 26 » Russia begins the Second Chechen War in response to the Invasion of Dagestan by the Islamic International Peacekeeping Brigade.
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/I110905.php : accessed October 14, 2026), "Jeltje Postma (1917-1999)".
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