The temperature on September 19, 1873 was about 17.0 °C. The air pressure was 13 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 59%. Source: KNMI
From July 6, 1872 till August 27, 1874 the Netherlands had a cabinet De Vries - Fransen van de Putte with the prime ministers Mr. G. de Vries Azn. (liberaal) and I.D. Fransen van de Putte (liberaal).
March 10 » The first Azerbaijani play "The Adventures of the Vizier of the Khan of Lenkaran" prepared by Akhundov was performed by Hassan-bey Zardabi and dramatist and Najaf-bey Vezirov.
April 4 » The Kennel Club is founded, the oldest and first official registry of purebred dogs in the world.
May 9 » Der Krach: Vienna stock market crash heralds the Long Depression.
September 1 » Cetshwayo ascends to the throne as king of the Zulu nation following the death of his father Mpande.
September 18 » The bank Jay Cooke & Company declares bankruptcy, contributing to the Panic of 1873.
Day of marriage June 10, 1900
The temperature on June 10, 1900 was about 22.8 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 51%. Source: KNMI
January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 6 » The Permanent Court of Arbitration, an international arbitration court at The Hague, is created when the Senate of the Netherlands ratifies an 1899 peace conference decree.
February 27 » Fußball-Club Bayern München is founded.
May 1 » The Scofield Mine disaster kills over 200 men in Scofield, Utah in what is to date the fifth-worst mining accident in United States history.
June 20 » Boxer Rebellion: The Imperial Chinese Army begins a 55-day siege of the Legation Quarter in Beijing, China.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of death October 22, 1958
The temperature on October 22, 1958 was between 10.5 °C and 13.8 °C and averaged 12.3 °C. There was 1.5 mm of rain during 2.5 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
January 31 » Cold War: Space Race: The first successful American satellite detects the Van Allen radiation belt.
February 6 » Eight Manchester United F.C. players and 15 other passengers are killed in the Munich air disaster.
February 22 » Egypt and Syria join to form the United Arab Republic.
May 13 » Ben Carlin becomes the first (and only) person to circumnavigate the world by amphibious vehicle, having travelled over 17,000 kilometres (11,000mi) by sea and 62,000 kilometres (39,000mi) by land during a ten-year journey.
May 22 » The 1958 riots in Ceylon become a watershed in the race relations of various ethnic communities of Sri Lanka. The total deaths is estimated at 300, mostly Tamils.
December 18 » Project SCORE, the world's first communications satellite, is launched.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I12686.php : accessed February 2, 2026), "Helena Modder (1873-1958)".
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