The temperature on May 23, 1889 was about 26.2 °C. The air pressure was 4 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 35%. 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.
June 6 » The Great Seattle Fire destroys all of downtown Seattle.
July 11 » Tijuana, Mexico, is founded.
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 June 14, 1911
The temperature on June 14, 1911 was between 2.0 °C and 15.7 °C and averaged 9.5 °C. There was 5.1 mm of rain. There was 8.6 hours of sunshine (51%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
January 12 » The University of the Philippines College of Law is formally established; three future Philippine presidents are among the first enrollees.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
May 23 » The New York Public Library is dedicated.
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
August 29 » Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
Day of death September 25, 1971
The temperature on September 25, 1971 was between 3.0 °C and 14.7 °C and averaged 10.9 °C. There was 12.0 mm of rain during 4.3 hours. There was 0.2 hours of sunshine (2%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
March 25 » The Army of the Republic of Vietnam abandon an attempt to cut off the Ho Chi Minh trail in Laos.
July 11 » Copper mines in Chile are nationalized.
September 8 » In Washington, D.C., the John F. Kennedy Center for the Performing Arts is inaugurated, with the opening feature being the premiere of Leonard Bernstein's Mass.
September 13 » Chairman Mao Zedong's second in command and successor Marshal Lin Biao flees the People's Republic of China after the failure of an alleged coup. His plane crashes in Mongolia, killing all aboard.
September 28 » The Parliament of the UK passes the Misuse of Drugs Act 1971, banning the medicinal use of cannabis.
December 5 » Battle of Gazipur: Pakistani forces stand defeated as India cedes Gazipur to Bangladesh.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I12563.php : accessed February 1, 2026), "Dirk Modder (1889-1971)".
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