The temperature on February 14, 1875 was about 1.5 °C. There was 0.1 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 93%. Source: KNMI
From August 27, 1874 till November 3, 1877 the Netherlands had a cabinet Heemskerk - Van Lijnden van Sandenburg with the prime ministers Mr. J. Heemskerk Azn. (conservatief) and Mr. C.Th. baron Van Lijnden van Sandenburg (AR).
March 15 » Archbishop of New York John McCloskey is named the first cardinal in the United States.
May 1 » Alexandra Palace reopens after being burned down in a fire in 1873.
May 20 » Signing of the Metre Convention by 17 nations leading to the establishment of the International System of Units.
June 19 » The Herzegovinian rebellion against the Ottoman Empire begins.
September 27 » The merchant sailing ship Ellen Southard is wrecked in a storm at Liverpool.
October 22 » First telegraphic connection in Argentina.
Day of marriage April 26, 1905
The temperature on April 26, 1905 was between 2.2 °C and 12.8 °C and averaged 7.8 °C. There was 3.8 hours of sunshine (26%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from August 1, 1901 to August 16, 1905 the cabinet Kuijper, with Dr. A. Kuijper (AR) as prime minister.
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
February 23 » Chicago attorney Paul Harris and three other businessmen meet for lunch to form the Rotary Club, the world's first service club.
April 17 » The Supreme Court of the United States decides Lochner v. New York, which holds that the "right to free contract" is implicit in the due process clause of the Fourteenth Amendment to the United States Constitution.
April 30 » Albert Einstein completes his doctoral thesis at the University of Zurich.
June 30 » Albert Einstein sends the article On the Electrodynamics of Moving Bodies, in which he introduces special relativity, for publication in Annalen der Physik.
September 11 » The Ninth Avenue derailment occurs in New York City, killing 13.
October 16 » The Partition of Bengal in India takes place.
Day of death March 21, 1930
The temperature on March 21, 1930 was between 0.8 °C and 9.9 °C and averaged 4.4 °C. There was 7.5 hours of sunshine (62%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
March 29 » Heinrich Brüning is appointed German Reichskanzler.
May 24 » Amy Johnson lands in Darwin, Northern Territory, becoming the first woman to fly solo from England to Australia (she left on May 5 for the 11,000 mile flight).
June 17 » U.S. President Herbert Hoover signs the Smoot–Hawley Tariff Act into law.
September 8 » 3M begins marketing Scotch transparent tape.
November 3 » Getúlio Vargas becomes Head of the Provisional Government in Brazil after a bloodless coup on October 24.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I3402.php : accessed January 22, 2026), "Jan de Graaf (1875-1930)".
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