The temperature on July 1, 1886 was about 14.2 °C. The air pressure was 4 kgf/m2 and came mainly from the north-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 72%. 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.
April 8 » William Ewart Gladstone introduces the first Irish Home Rule Bill into the British House of Commons.
May 1 » Rallies are held throughout the United States demanding the eight-hour work day, culminating in the Haymarket affair in Chicago, in commemoration of which May 1 is celebrated as International Workers' Day in many countries.
May 4 » Haymarket affair: A bomb is thrown at policemen trying to break up a labor rally in Chicago, United States, killing eight and wounding 60. The police fire into the crowd.
May 5 » The Bay View massacre: A militia fires into a crowd of protesters in Milwaukee, killing seven.
June 13 » A fire devastates much of Vancouver, British Columbia.
June 26 » Henri Moissan isolated elemental Fluorine for the first time.
Day of marriage May 13, 1916
The temperature on May 13, 1916 was between 7.4 °C and 17.4 °C and averaged 12.1 °C. There was 2.5 hours of sunshine (16%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. 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.
April 24 » Ernest Shackleton and five men of the Imperial Trans-Antarctic Expedition launch a lifeboat from uninhabited Elephant Island in the Southern Ocean to organise a rescue for the crew of the sunken Endurance.
June 5 » Louis Brandeis is sworn in as a Justice of the United States Supreme Court; he is the first American Jew to hold such a position.
July 15 » In Seattle, Washington, William Boeing and George Conrad Westervelt incorporate Pacific Aero Products (later renamed Boeing).
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 17 » World War I: Romania signs a secret treaty with the Entente Powers. According to the treaty, Romania agreed to join the war on the Allied side.
August 28 » World War I: Italy declares war on Germany.
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/I146494.php : accessed October 20, 2026), "Gerrit Ploegh (1886-????)".
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