The temperature on March 21, 1889 was about 7.3 °C. There was 5 mm of rain. The air pressure was 8 kgf/m2 and came mainly from the north-northeast. The airpressure was 74 cm mercury. The atmospheric humidity was 83%. Source: KNMI
January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
February 22 » President Grover Cleveland signs a bill admitting North Dakota, South Dakota, Montana and Washington as U.S. states.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
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 23 » The first jukebox goes into operation at the Palais Royale Saloon in San Francisco.
Day of marriage May 4, 1912
The temperature on May 4, 1912 was between 5.1 °C and 12.1 °C and averaged 8.7 °C. There was 0.1 hours of sunshine (1%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
February 25 » Marie-Adélaïde, the eldest of six daughters of Guillaume IV, becomes the first reigning Grand Duchess of Luxembourg.
April 14 » The British passenger liner RMSTitanic hits an iceberg in the North Atlantic at 23:40 (sinks morning of April 15th).
September 25 » Columbia University Graduate School of Journalism is founded in New York City.
October 11 » First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.
November 5 » Woodrow Wilson is elected the 28th President of the United States, defeating incumbent William Howard Taft.
December 19 » William Van Schaick, captain of the steamship General Slocum which caught fire and killed over one thousand people, is pardoned by U.S. President William Howard Taft after 3⁄2 years in Sing Sing prison.
Day of death August 11, 1952
The temperature on August 11, 1952 was between 13.4 °C and 22.8 °C and averaged 17.6 °C. There was 0.2 mm of rain during 0.6 hours. There was 3.2 hours of sunshine (21%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
April 21 » Secretary's Day (now Administrative Professionals' Day) is first celebrated.
April 28 » The Sino-Japanese Peace Treaty (Treaty of Taipei) is signed in Taipei, Taiwan between Japan and the Republic of China to officially end the Second Sino-Japanese War.
May 2 » A De Havilland Comet makes the first jetliner flight with fare-paying passengers, from London to Johannesburg.
July 23 » General Muhammad Naguib leads the Free Officers Movement (formed by Gamal Abdel Nasser, the real power behind the coup) in overthrowing King Farouk of Egypt.
October 8 » The Harrow and Wealdstone rail crash kills 112 people.
November 25 » Agatha Christie's murder-mystery play The Mousetrap opens at the Ambassadors Theatre in London. It will become the longest continuously-running play in history.
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/I17969.php : accessed October 20, 2026), "Tjeerd Postma (1889-1952)".
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