The temperature on May 5, 1871 was about 11.6 °C. The air pressure was 2 kgf/m2 and came mainly from the west-northwest. The atmospheric humidity was 65%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
In The Netherlands , there was from January 4, 1871 to July 6, 1872 the cabinet Thorbecke III, with Mr. J.R. Thorbecke (liberaal) as prime minister.
January 19 » Franco-Prussian War: In the Siege of Paris, Prussia wins the Battle of St. Quentin. Meanwhile, the French attempt to break the siege in the Battle of Buzenval will end unsuccessfully the following day.
March 21 » Otto von Bismarck is appointed as the first Chancellor of the German Empire.
March 26 » The elections of Commune council of the Paris Commune are held.
April 30 » The Camp Grant massacre takes place in Arizona Territory.
May 28 » The Paris Commune falls after two months.
October 12 » The British in India enact the Criminal Tribes Act, naming many local communities "Criminal Tribes".
Day of marriage May 30, 1895
The temperature on May 30, 1895 was about 20.9 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 60%. Source: KNMI
March 19 » Auguste and Louis Lumière record their first footage using their newly patented cinematograph.
April 6 » Oscar Wilde is arrested in the Cadogan Hotel, London, after losing a libel case against the Marquess of Queensberry.
June 11 » Paris–Bordeaux–Paris, sometimes called the first automobile race in history or the "first motor race", takes place.
October 4 » Horace Rawlins wins the first U.S. Open Men's Golf Championship.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
Day of death December 30, 1945
The temperature on December 30, 1945 was between -2.5 °C and 4.0 °C and averaged 1.8 °C. There was 0.1 mm of rain. There was 0.2 hours of sunshine (3%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east. 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.
In The Netherlands , there was from February 23, 1945 to June 24, 1945 the cabinet Gerbrandy III, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
January 17 » The SS-Totenkopfverbände begin the evacuation of the Auschwitz concentration camp as Soviet forces close in.
February 9 » World War II: Battle of the Atlantic: HMSVenturer sinks U-864 off the coast of Fedje, Norway, in a rare instance of submarine-to-submarine combat.
March 21 » World War II: Bulgaria and the Soviet Union successfully complete their defense of the north bank of the Drava River as the Battle of the Transdanubian Hills concludes.
April 13 » World War II: Soviet and Bulgarian forces capture Vienna.
April 26 » World War II: Battle of Bautzen: Last successful German tank-offensive of the war and last noteworthy victory of the Wehrmacht.
May 5 » World War II: Dönitz gives Löhr permission to seek an armistice with the Western Allies to preserve a communist free Austria and recognising first, from a German standpoint, the separation of Austria from Germany undoing the Anschluss.
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/I59691.php : accessed October 19, 2026), "Jan Helder (1871-1945)".
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