The temperature on April 4, 1848 was about 18.0 °C. Wind direction mainly southwest. Weather type: helder. Source: KNMI
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De Republiek der Verenigde Nederlanden werd in 1794-1795 door de Fransen veroverd onder leiding van bevelhebber Charles Pichegru (geholpen door de Nederlander Herman Willem Daendels); de verovering werd vergemakkelijkt door het dichtvriezen van de Waterlinie; Willem V moest op 18 januari 1795 uitwijken naar Engeland (en van daaruit in 1801 naar Duitsland); de patriotten namen de macht over van de aristocratische regenten en proclameerden de Bataafsche Republiek; op 16 mei 1795 werd het Haags Verdrag gesloten, waarmee ons land een vazalstaat werd van Frankrijk; in 3.1796 kwam er een Nationale Vergadering; in 1798 pleegde Daendels een staatsgreep, die de unitarissen aan de macht bracht; er kwam een nieuwe grondwet, die een Vertegenwoordigend Lichaam (met een Eerste en Tweede Kamer) instelde en als regering een Directoire; in 1799 sloeg Daendels bij Castricum een Brits-Russische invasie af; in 1801 kwam er een nieuwe grondwet; bij de Vrede van Amiens (1802) kreeg ons land van Engeland zijn koloniën terug (behalve Ceylon); na de grondwetswijziging van 1805 kwam er een raadpensionaris als eenhoofdig gezag, namelijk Rutger Jan Schimmelpenninck (van 31 oktober 1761 tot 25 maart 1825).
From November 21, 1848 till November 1, 1849 the Netherlands had a cabinet De Kempenaer - Donker Curtius with the prime ministers Mr. J.M. de Kempenaer (conservatief-liberaal) and Mr. D. Donker Curtius (conservatief-liberaal).
February 24 » King Louis-Philippe of France abdicates the throne.
March 4 » Carlo Alberto di Savoia signs the Statuto Albertino that will later represent the first constitution of the Regno d'Italia.
March 20 » German revolutions of 1848–49: King Ludwig I of Bavaria abdicates.
May 18 » Opening of the first German National Assembly (Nationalversammlung) in Frankfurt, Germany.
June 2 » The Slavic congress in Prague begins.
September 29 » The Battle of Pákozd is a stalemate between Hungarian and Croatian forces, and is the first battle of the Hungarian Revolution.
Day of marriage May 9, 1891
The temperature on May 9, 1891 was about 11.3 °C. There was 0.1 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the north-northeast. The airpressure was 75 cm mercury. The atmospheric humidity was 97%. 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 29 » Liliuokalani is proclaimed the last monarch and only queen regnant of the Kingdom of Hawaii.
January 31 » History of Portugal: The first attempt at a Portuguese republican revolution breaks out in the northern city of Porto.
February 15 » Allmänna Idrottsklubben (AIK) (Swedish Sports Club) is founded.
March 3 » Shoshone National Forest is established as the first national forest in the US and world.
July 26 » France annexes Tahiti.
August 18 » Major hurricane strikes Martinique, leaving 700 dead.
Day of death February 15, 1927
The temperature on February 15, 1927 was between -1.0 °C and 7.8 °C and averaged 2.8 °C. There was 0.1 mm of rain. There was 1.0 hours of sunshine (10%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
February 23 » U.S. President Calvin Coolidge signs a bill by Congress establishing the Federal Radio Commission (later replaced by the Federal Communications Commission) which was to regulate the use of radio frequencies in the United States.
March 24 » Nanking Incident: Foreign warships bombard Nanjing, China, in defense of the foreign citizens within the city.
May 4 » The Academy of Motion Picture Arts and Sciences is incorporated.
June 29 » The Bird of Paradise, a U.S. Army Air Corps Fokker tri-motor, completes the first transpacific flight, from the mainland United States to Hawaii.
August 1 » The Nanchang Uprising marks the first significant battle in the Chinese Civil War between the Kuomintang and Chinese Communist Party. This day is commemorated as the anniversary of the founding of the People's Liberation Army.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I82317.php : accessed February 9, 2026), "Roelof Koops (1848-1927)".
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