The temperature on April 3, 1889 was about 4.5 °C. There was 2 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the northwest. The airpressure was 75 cm mercury. The atmospheric humidity was 85%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
March 23 » The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
July 11 » Tijuana, Mexico, is founded.
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
November 11 » The State of Washington is admitted as the 42nd state of the United States.
Day of marriage November 30, 1912
The temperature on November 30, 1912 was between 1.8 °C and 4.9 °C and averaged 3.2 °C. There was 5.4 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
January 6 » New Mexico is admitted to the Union as the 47th U.S. state.
February 12 » The Xuantong Emperor, the last Emperor of China, abdicates.
February 14 » Arizona is admitted as the 48th and the last contiguous U.S. state.
December 3 » Bulgaria, Greece, Montenegro, and Serbia (the Balkan League) sign an armistice with the Ottoman Empire, temporarily halting the First Balkan War. (The armistice will expire on February 3, 1913, and hostilities will resume.)
When copying data from this family tree, please include a reference to the origin: Erwin Wiesenfeld, "Genealogy Wiesenfeld en Klein Meulenkamp", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-wiesenfeld-en-klein-meulenkamp/I6719.php : accessed June 21, 2024), "Albert ten Berk de Boer (1889-????)".
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