The temperature on January 21, 1888 was about -2.9 °C. The air pressure was 44 kgf/m2 and came mainly from the south-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 96%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
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.
June 5 » The Rio de la Plata earthquake takes place.
June 15 » Crown Prince Wilhelm becomes Kaiser Wilhelm II; he will be the last Emperor of the German Empire. Due to the death of his predecessors Wilhelm I and Frederick III, 1888 is the Year of the Three Emperors.
August 21 » The first successful adding machine in the United States is patented by William Seward Burroughs.
October 29 » The Convention of Constantinople is signed, guaranteeing free maritime passage through the Suez Canal during war and peace.
October 30 » The Rudd Concession is granted by Matabeleland to agents of Cecil Rhodes.
December 22 » The Christmas Meeting of 1888, considered to be the official start of the Faroese independence movement.
Day of marriage June 15, 1912
The temperature on June 15, 1912 was between 11.0 °C and 16.1 °C and averaged 13.6 °C. There was 6.4 mm of rain. There was 6.9 hours of sunshine (41%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 5 » The 6th All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens. In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.
January 23 » The International Opium Convention is signed at The Hague.
May 13 » The Royal Flying Corps, the forerunner of the Royal Air Force, is established in the United Kingdom.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
October 17 » Bulgaria, Greece and Serbia declare war on the Ottoman Empire, joining Montenegro in the First Balkan War.
October 24 » First Balkan War: The Battle of Kumanovo concludes with the Serbian victory against the Ottoman Empire.
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/I51393.php : accessed October 22, 2026), "Wolter Poelman (1888-????)".
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