The temperature on April 21, 1891 was about 13.1 °C. The air pressure was 3 kgf/m2 and came mainly from the north-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 41%. Source: KNMI
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
January 31 » History of Portugal: The first attempt at a Portuguese republican revolution breaks out in the northern city of Porto.
May 15 » Pope Leo XIII defends workers' rights and property rights in the encyclical Rerum novarum, the beginning of modern Catholic social teaching.
May 16 » The International Electrotechnical Exhibition opens in Frankfurt, Germany, and will feature the world's first long-distance transmission of high-power, three-phase electric current (the most common form today).
August 16 » The Basilica of San Sebastian, Manila, the first all-steel church in Asia, is officially inaugurated and blessed.
August 18 » Major hurricane strikes Martinique, leaving 700 dead.
August 24 » Thomas Edison patents the motion picture camera.
Day of marriage February 28, 1917
The temperature on February 28, 1917 was between -0.2 °C and 4.7 °C and averaged 2.9 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-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.
January 31 » World War I: Germany announces that its U-boats will resume unrestricted submarine warfare after a two-year hiatus.
March 26 » World War I: First Battle of Gaza: British troops are halted after 17,000 Turks block their advance.
April 12 » World War I: Canadian forces successfully complete the taking of Vimy Ridge from the Germans.
May 26 » Several powerful tornadoes rip through Illinois, including the city of Mattoon.
November 20 » World War I: Battle of Cambrai begins: British forces make early progress in an attack on German positions but are later pushed back.
December 11 » World War I: British General Edmund Allenby enters Jerusalem on foot and declares martial law.
Day of death January 6, 1973
The temperature on January 6, 1973 was between 1.1 °C and 4.1 °C and averaged 2.9 °C. There was 0.3 mm of rain. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
January 8 » Soviet space mission Luna 21 is launched.
March 1 » Black September storms the Saudi embassy in Khartoum, Sudan, resulting in the assassination of three Western hostages.
July 31 » A Delta Air Lines jetliner, flight DL 723 crashes while landing in fog at Logan International Airport, Boston, Massachusetts killing 89.
November 1 » Watergate scandal: Leon Jaworski is appointed as the new Watergate Special Prosecutor.
November 25 » Georgios Papadopoulos, head of the military Regime of the Colonels in Greece, is ousted in a hardliners' coup led by Brigadier General Dimitrios Ioannidis.
December 21 » The Geneva Conference on the Arab–Israeli conflict opens.
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/I211393.php : accessed February 15, 2026), "David Martinus Knibbe (1891-1973)".
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