The temperature on June 25, 1889 was about 22.2 °C. The air pressure was 4 kgf/m2 and came mainly from the north-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 51%. 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.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
June 29 » Hyde Park and several other Illinois townships vote to be annexed by Chicago, forming the largest United States city in area and second largest in population at the time.
August 13 » William Gray of Hartford, Connecticut is granted United States Patent Number 408,709 for "Coin-controlled apparatus for telephones."
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
November 15 » Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.
Day of marriage May 6, 1914
The temperature on May 6, 1914 was between 9.3 °C and 14.1 °C and averaged 11.3 °C. There was 0.5 mm of rain. There was 2.5 hours of sunshine (16%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. 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 9 » The Phi Beta Sigma fraternity is founded by African-American students at Howard University in Washington D.C., United States.
August 14 » World War I: Start of the Battle of Lorraine, an unsuccessful French offensive designed to recover the lost province of Moselle from Germany.
August 23 » World War I: Japan declares war on Germany.
November 1 » World War I: The first British Royal Navy defeat of the war with Germany, the Battle of Coronel, is fought off of the western coast of Chile, in the Pacific, with the loss of HMSGood Hope and HMSMonmouth.
November 5 » World War I: France and the British Empire declare war on the Ottoman Empire.
December 14 » Lisandro de la Torre and others found the Democratic Progressive Party (Partido Demócrata Progresista, PDP) at the Hotel Savoy, Buenos Aires, Argentina.
When copying data from this family tree, please include a reference to the origin: Hans Pruckmuller, "Family tree Van Willigen", database, Genealogy Online (https://www.genealogieonline.nl/van-willigen-stamboom/I11166.php : accessed February 2, 2026), "Gerritje Pannekoek (1889-????)".
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