The temperature on September 14, 1875 was about 20.1 °C. The air pressure was 7 kgf/m2 and came mainly from the east-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 51%. 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).
February 24 » The SSGothenburg hits the Great Barrier Reef and sinks off the Australian east coast, killing approximately 100, including a number of high-profile civil servants and dignitaries.
February 25 » Guangxu Emperor of Qing dynasty China begins his reign, under Empress Dowager Cixi's regency.
April 10 » India: Arya Samaj is founded in Mumbai by Swami Dayananda Saraswati to propagate his goal of social reform.
May 17 » Aristides wins the first Kentucky Derby with the jockey Oliver Lewis (2:37.75)
May 20 » Signing of the Metre Convention by 17 nations leading to the establishment of the International System of Units.
August 22 » The Treaty of Saint Petersburg between Japan and Russia is ratified, providing for the exchange of Sakhalin for the Kuril Islands.
Day of marriage May 25, 1905
The temperature on May 25, 1905 was between 6.9 °C and 17.3 °C and averaged 12.1 °C. There was 5.3 hours of sunshine (33%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. 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.
April 4 » In India, an earthquake hits the Kangra Valley, killing 20,000, and destroying most buildings in Kangra, McLeod Ganj and Dharamshala.
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.
June 7 » Norway's parliament dissolves its union with Sweden. The vote was confirmed by a national plebiscite on August 13 of that year.
October 26 » King Oscar II recognizes the dissolution of the union between Norway and Sweden.
November 18 » Prince Carl of Denmark becomes King Haakon VII of Norway.
November 21 » Albert Einstein's paper that leads to the mass–energy equivalence formula, E=mc², is published in the journal Annalen der Physik.
When copying data from this family tree, please include a reference to the origin: Jan De Backer, "Family tree De Backer - Evers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-backer-evers/I13513.php : accessed March 12, 2026), "Petrus Alphonsus de Keyser (1875-????)".
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