The temperature on September 23, 1883 was about 15.0 °C. There was 0.1 mm of rain. The air pressure was 3 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 53%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
January 16 » The Pendleton Civil Service Reform Act, establishing the United States Civil Service, is enacted by Congress.
May 20 » Krakatoa begins to erupt; the volcano explodes three months later, killing more than 36,000 people.
July 10 » War of the Pacific: Chileans led by Alejandro Gorostiaga defeat Andrés Avelino Cáceres's Peruvuan army at the Battle of Huamachuco, hastening the end of the war.
August 25 » France and Viet Nam sign the Treaty of Huế, recognizing a French protectorate over Annam and Tonkin.
October 4 » First meeting of the Boys' Brigade in Glasgow, Scotland.
October 22 » Mödling and Hinterbrühl Tram, Vienna, Austria, first electric tram powered by overhead wire.
Day of death May 12, 1958
The temperature on May 12, 1958 was between 6.3 °C and 15.5 °C and averaged 10.9 °C. There was 6.5 hours of sunshine (42%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
April 4 » The CND peace symbol is displayed in public for the first time in London.
April 5 » Ripple Rock, an underwater threat to navigation in the Seymour Narrows in Canada is destroyed in one of the largest non-nuclear controlled explosions of the time.
April 14 » The Soviet satellite Sputnik 2 falls from orbit after a mission duration of 162 days. This was the first spacecraft to carry a living animal, a female dog named Laika, who likely lived only a few hours.
July 26 » Explorer program: Explorer 4 is launched.
August 17 » Pioneer 0, America's first attempt at lunar orbit, is launched using the first Thor-Able rocket and fails. Notable as one of the first attempted launches beyond Earth orbit by any country.
October 1 » The National Advisory Committee for Aeronautics is replaced by NASA.
When copying data from this family tree, please include a reference to the origin: Tjitze Koster, "Family tree Koster Twijslerheide e.o.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster/I1875.php : accessed February 20, 2026), "Pieter J. de Graaf (1883-1958)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.