The temperature on June 19, 1915 was between 3.1 °C and 17.1 °C and averaged 10.6 °C. There was 2.6 hours of sunshine (16%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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 18 » Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.
April 22 » The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres.
June 21 » The U.S. Supreme Court hands down its decision in Guinn v. United States 238 US 347 1915, striking down Oklahoma grandfather clause legislation which had the effect of denying the right to vote to blacks.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
August 6 » World War I: Battle of Sari Bair: The Allies mount a diversionary attack timed to coincide with a major Allied landing of reinforcements at Suvla Bay.
October 13 » First World War: The Battle of the Hohenzollern Redoubt marks the end of the Battle of Loos.
Day of marriage June 1, 1937
The temperature on June 1, 1937 was between 6.3 °C and 18.3 °C and averaged 13.0 °C. There was 10.4 hours of sunshine (63%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
March 18 » Spanish Civil War: Spanish Republican forces defeat the Italians at the Battle of Guadalajara.
May 26 » Walter Reuther and members of the United Auto Workers (UAW) clashed with Ford Motor Company security guards at the River Rouge Complex complex in Dearborn, Michigan, during the Battle of the Overpass.
June 3 » The Duke of Windsor marries Wallis Simpson.
July 24 » Alabama drops rape charges against the "Scottsboro Boys".
July 29 » Tōngzhōu Incident: In Tōngzhōu, China, the East Hopei Army attacks Japanese troops and civilians.
November 1 » Stalinists execute Pastor Paul Hamberg and seven members of Azerbaijan's Lutheran community.
Day of death October 15, 1999
The temperature on October 15, 1999 was between 6.5 °C and 13.5 °C and averaged 10.4 °C. The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
January 1 » Euro currency is introduced in 11 member nations of the European Union (with the exception of the United Kingdom, Denmark, Greece and Sweden; Greece later adopts the euro).
April 8 » Haryana Gana Parishad, a political party in the Indian state of Haryana, merges with the Indian National Congress.
May 29 » Olusegun Obasanjo takes office as President of Nigeria, the first elected and civilian head of state in Nigeria after 16 years of military rule.
July 20 » The Chinese Communist Party begins a persecution campaign against Falun Gong, arresting thousands nationwide.
August 2 » The Gaisal train disaster claims 285 lives in Assam, India.
December 5 » Helen Clark is sworn in as Prime Minister of New Zealand, the second woman to hold the post and the first to be elected to the role.
Day of burial October 20, 1999
The temperature on October 20, 1999 was between 2.1 °C and 10.5 °C and averaged 5.8 °C. There was 8.8 hours of sunshine (85%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
February 24 » China Southwest Airlines Flight 4509, a Tupolev Tu-154 aircraft, crashes on approach to Wenzhou Longwan International Airport in Wenzhou, Zhejiang, China. All 61 people on board are killed.
April 20 » Columbine High School massacre: Eric Harris and Dylan Klebold kill 13 people and injure 24 others before committing suicide at Columbine High School in Columbine, Colorado.
April 23 » NATO bombs the headquarters of Radio Television of Serbia, as part of their aerial campaign against the Federal Republic of Yugoslavia.
July 23 » Space Shuttle Columbia launches on STS-93, with Eileen Collins becoming the first female space shuttle commander. The shuttle also carried and deployed the Chandra X-ray Observatory.
September 21 » The Chi-Chi earthquake occurs in central Taiwan, leaving about 2,400 people dead.
November 11 » The House of Lords Act is given Royal Assent, restricting membership of the British House of Lords by virtue of a hereditary peerage.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I17823.php : accessed February 19, 2026), "Zwaantien Ziengs (1915-1999)".
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