The temperature on April 23, 1889 was about 14.1 °C. The air pressure was 10 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 49%. Source: KNMI
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
March 23 » The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India.
May 11 » An attack upon a U.S. Army paymaster and escort results in the theft of over $28,000 and the award of two Medals of Honor.
May 31 » Johnstown Flood: Over 2,200 people die after a dam fails and sends a 60-foot (18-meter) wall of water over the town of Johnstown, Pennsylvania.
October 24 » Henry Parkes delivers the Tenterfield Oration, effectively starting the federation process in Australia.
November 8 » Montana is admitted as the 41st U.S. state.
Day of marriage December 23, 1916
The temperature on December 23, 1916 was between 0.6 °C and 12.5 °C and averaged 5.4 °C. There was 12.7 mm of rain. There was 0.2 hours of sunshine (3%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. 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.
June 5 » World War I: The Arab Revolt against the Ottoman Empire breaks out.
August 14 » Romania declares war on Austria-Hungary.
September 19 » World War I: During the East African Campaign, colonial forces of the Belgian Congo (Force Publique) under the command of Charles Tombeur capture the town of Tabora after heavy fighting.
November 7 » Boston Elevated Railway Company's streetcar No. 393 smashes through the warning gates of the open Summer Street drawbridge in Boston, Massachusetts, plunging into the frigid waters of Fort Point Channel, killing 46 people.
November 7 » Jeannette Rankin is the first woman elected to the United States Congress.
November 19 » Samuel Goldwyn and Edgar Selwyn establish Goldwyn Pictures.
Day of death May 15, 1959
The temperature on May 15, 1959 was between 9.0 °C and 18.4 °C and averaged 13.9 °C. There was 0.1 mm of rain during 0.3 hours. There was 11.0 hours of sunshine (70%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
March 30 » Tenzin Gyatso, the 14th Dalai Lama, flees Tibet for India.
April 9 » Project Mercury: NASA announces the selection of the United States' first seven astronauts, whom the news media quickly dub the "Mercury Seven".
June 5 » The first government of Singapore is sworn in.
June 9 » The USSGeorge Washington is launched. It is the first nuclear-powered ballistic missile submarine.
September 12 » The Soviet Union launches a large rocket, Lunik II, at the moon.
October 21 » President Eisenhower approves the transfer of all US Army space-related activities to NASA, including most of the Army Ballistic Missile Agency.
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/I79835.php : accessed February 10, 2026), "Klaas de Boer (1889-1959)".
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