The temperature on July 20, 1890 was about 13.7 °C. There was 0.7 mm of rain. The air pressure was 3 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 93%. Source: KNMI
March 20 » Prime Minister of the German Empire Otto von Bismarck is dismissed by Emperor Wilhelm II.
July 1 » Canada and Bermuda are linked by telegraph cable.
September 12 » Salisbury, Rhodesia, is founded.
September 24 » The Church of Jesus Christ of Latter-day Saints officially renounces polygamy.
November 4 » City and South London Railway: London's first deep-level tube railway opens between King William Street and Stockwell.
November 23 » King William III of the Netherlands dies without a male heir and a special law is passed to allow his daughter Princess Wilhelmina to succeed him.
Day of marriage September 7, 1916
The temperature on September 7, 1916 was between 7.8 °C and 20.0 °C and averaged 14.7 °C. There was 0.2 mm of rain. There was 5.0 hours of sunshine (38%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. 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.
May 6 » Twenty-one Lebanese nationalists are executed in Martyrs' Square, Beirut by Djemal Pasha.
August 5 » World War I: Battle of Romani: Allied forces, under the command of Archibald Murray, defeat an attacking Ottoman army under the command of Friedrich Freiherr Kress von Kressenstein, securing the Suez Canal and beginning the Ottoman retreat from the Sinai Peninsula.
August 14 » Romania declares war on Austria-Hungary.
September 15 » World War I: Tanks are used for the first time in battle, at the Battle of the Somme.
September 17 » World War I: Manfred von Richthofen ("The Red Baron"), a flying ace of the German Luftstreitkräfte, wins his first aerial combat near Cambrai, France.
December 29 » A Portrait of the Artist as a Young Man, the first novel by James Joyce, was first published as a book by an American publishing house B. W. Huebschis after it had been serialized in The Egoist (1914–15).
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I3767.php : accessed February 1, 2026), "Jan Jonker (1890-????)".
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