The temperature on August 31, 1873 was about 21.3 °C. The air pressure was 2 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 72%. 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).
February 18 » Bulgarian revolutionary leader Vasil Levski is executed by hanging in Sofia by the Ottoman authorities.
April 13 » The Colfax massacre, in which more than 60 black men are murdered, takes place.
May 20 » Levi Strauss and Jacob Davis receive a U.S. patent for blue jeans with copper rivets.
June 5 » Sultan Barghash bin Said of Zanzibar closes the great slave market under the terms of a treaty with Great Britain.
July 1 » Prince Edward Island joins into Canadian Confederation.
September 18 » The bank Jay Cooke & Company declares bankruptcy, contributing to the Panic of 1873.
Day of marriage February 28, 1918
The temperature on February 28, 1918 was between -1.2 °C and 6.6 °C and averaged 3.2 °C. There was 1.1 mm of rain. There was 3.0 hours of sunshine (28%). The average windspeed was 3 Bft (moderate breeze) 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.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 21 » World War I: The first phase of the German Spring Offensive, Operation Michael, begins.
June 22 » The Hammond Circus Train Wreck kills 86 and injures 127 near Hammond, Indiana.
July 17 » Tsar Nicholas II of Russia and his immediate family and retainers are executed by Bolshevik Chekists at the Ipatiev House in Yekaterinburg, Russia.
August 17 » Bolshevik revolutionary leader Moisei Uritsky is assassinated.
November 9 » Kaiser Wilhelm II of Germany abdicates after the German Revolution, and Germany is proclaimed a Republic.
December 28 » Constance Markievicz, while detained in Holloway prison, became the first woman to be elected MP to the British House of Commons.
Day of death September 20, 1947
The temperature on September 20, 1947 was between 14.2 °C and 23.6 °C and averaged 18.6 °C. There was 9.3 hours of sunshine (75%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
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/I203770.php : accessed February 15, 2026), "Lammert de Graaff (1873-1947)".
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