The temperature on May 19, 1909 was between 4.4 °C and 17.7 °C and averaged 11.7 °C. There was 9.6 hours of sunshine (61%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
February 20 » Publication of the Futurist Manifesto in the French journal Le Figaro.
February 23 » The AEA Silver Dart makes the first powered flight in Canada and the British Empire.
April 9 » The U.S. Congress passes the Payne–Aldrich Tariff Act.
June 26 » The Science Museum in London comes into existence as an independent entity.
August 24 » Workers start pouring concrete for the Panama Canal.
August 28 » A group of mid-level Greek Army officers launches the Goudi coup, seeking wide-ranging reforms.
Christening day September 9, 1917
The temperature on September 9, 1917 was between 11.6 °C and 18.8 °C and averaged 15.2 °C. There was 0.7 hours of sunshine (5%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. 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 9 » World War I: The Battle of Rafa is fought near the Egyptian border with Palestine.
February 3 » First World War: The American entry into World War I begins when diplomatic relations with Germany are severed due to its unrestricted submarine warfare.
March 25 » The Georgian Orthodox Church restores its autocephaly abolished by Imperial Russia in 1811.
April 2 » World War I: United States President Woodrow Wilson asks the U.S. Congress for a declaration of war on Germany.
May 19 » The Norwegian football club Rosenborg BK is founded.
August 28 » Ten Suffragettes are arrested while picketing the White House.
Day of marriage April 3, 1948
The temperature on April 3, 1948 was between 4.0 °C and 10.4 °C and averaged 6.5 °C. There was 8.0 mm of rain during 3.1 hours. There was 7.0 hours of sunshine (54%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from July 3, 1946 to August 7, 1948 the cabinet Beel I, with Dr. L.J.M. Beel (KVP) as prime minister.
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
March 18 » Soviet consultants leave Yugoslavia in the first sign of the Tito–Stalin Split.
April 9 » Fighters from the Irgun and Lehi Zionist paramilitary groups attacked Deir Yassin near Jerusalem, killing over 100.
May 14 » Israel is declared to be an independent state and a provisional government is established. Immediately after the declaration, Israel is attacked by the neighboring Arab states, triggering the 1948 Arab–Israeli War.
July 1 » Muhammad Ali Jinnah (Quaid-i-Azam) inaugurates Pakistan's central bank, the State Bank of Pakistan.
July 29 » Olympic Games: The Games of the XIV Olympiad: After a hiatus of 12 years caused by World War II, the first Summer Olympics to be held since the 1936 Summer Olympics in Berlin, open in London.
September 22 » Gail Halvorsen officially starts parachuting candy to children as part of the Berlin Airlift.
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/I66713.php : accessed October 10, 2026), "Hielke Helder (1909-)".
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