The temperature on April 12, 1889 was about 8.5 °C. The air pressure was 4 kgf/m2 and came mainly from the north-northeast. The airpressure was 75 cm mercury. The atmospheric humidity was 83%. 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.
February 11 » Meiji Constitution of Japan is adopted.
March 31 » The Eiffel Tower is officially opened.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
November 14 » Pioneering female journalist Nellie Bly (aka Elizabeth Cochrane) begins a successful attempt to travel around the world in less than 80 days. She completes the trip in 72 days.
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 30, 1914
The temperature on May 30, 1914 was between 6.2 °C and 18.5 °C and averaged 12.9 °C. There was 6.2 hours of sunshine (38%). The average windspeed was 2 Bft (weak wind) 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.
March 7 » Prince William of Wied arrives in Albania to begin his reign as King.
July 4 » The funeral of Archduke Franz Ferdinand and his wife Sophie takes place in Vienna, six days after their assassinations in Sarajevo.
July 18 » The U.S. Congress forms the Aviation Section, U.S. Signal Corps, giving official status to aircraft within the U.S. Army for the first time.
August 26 » World War I: During the retreat from Mons, the British II Corps commanded by General Sir Horace Smith-Dorrien fought a vigorous and successful defensive action at Le Cateau.
August 27 » World War I: Battle of Étreux: A British rearguard action by the Royal Munster Fusiliers during the Great Retreat.
December 15 » World War I: The Serbian Army recaptures Belgrade from the invading Austro-Hungarian Army.
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/I212550.php : accessed October 15, 2026), "Derk van der Maar (1889-????)".
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