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 9 » US president Grover Cleveland signs a bill elevating the United States Department of Agriculture to a Cabinet-level agency.
March 23 » The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India.
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.
August 13 » William Gray of Hartford, Connecticut is granted United States Patent Number 408,709 for "Coin-controlled apparatus for telephones."
November 11 » The State of Washington is admitted as the 42nd state of the United States.
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
January 8 » The African National Congress is founded, under the name South African Native National Congress (SANNC).
April 14 » The British passenger liner RMSTitanic hits an iceberg in the North Atlantic at 23:40 (sinks morning of April 15th).
May 5 » Pravda, the "voice" of the Communist Party of the Soviet Union, begins publication in Saint Petersburg.
May 13 » The Royal Flying Corps, the forerunner of the Royal Air Force, is established in the United Kingdom.
September 2 » Arthur Rose Eldred is awarded the first Eagle Scout award of the Boy Scouts of America.
October 11 » First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.
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
February 6 » Elizabeth II becomes Queen of the United Kingdom and her other Realms and Territories and Head of the Commonwealth upon the death of her father, George VI. At the exact moment of succession, she was in a tree house at the Treetops Hotel in Kenya.
July 7 » The ocean liner SSUnited States passes Bishop Rock on her maiden voyage, breaking the transatlantic speed record to become the fastest passenger ship in the world.
July 19 » Opening of the Summer Olympics in Helsinki, Finland.
July 21 » The 7.3 Mw Kern County earthquake strikes Southern California with a maximum Mercalli intensity of XI (Extreme), killing 12 and injuring hundreds.
August 15 » A flash flood drenches the town of Lynmouth, England, killing 34 people.
November 25 » Korean War: After 42 days of fighting, the Battle of Triangle Hill ends with Chinese victory, American and South Korean units abandon their attempt to capture the "Iron Triangle".
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 December 28, 2025), "Tjeerd Postma (1889-1952)".
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