The temperature on May 30, 1886 was about 18.4 °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 62%. 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.
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.
June 26 » Henri Moissan isolated elemental Fluorine for the first time.
June 30 » The first transcontinental train trip across Canada departs from Montreal, Quebec. It arrives in Port Moody, British Columbia on July 4.
July 3 » The New-York Tribune becomes the first newspaper to use a linotype machine, eliminating typesetting by hand.
August 31 » The 7.0 Mw Charleston earthquake affects southeastern South Carolina with a maximum Mercalli intensity of X (Extreme). Sixty people killed with damage estimated at $5–6 million.
November 14 » Friedrich Soennecken first developed the hole puncher, a type of office tool capable of punching small holes in paper.
Day of marriage August 11, 1910
The temperature on August 11, 1910 was between 10.7 °C and 22.4 °C and averaged 16.9 °C. There was 11.8 hours of sunshine (79%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
January 15 » Construction ends on the Buffalo Bill Dam in Wyoming, United States, which was the highest dam in the world at the time, at 325ft (99m).
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
July 24 » The Ottoman Empire captures the city of Shkodër, putting down the Albanian Revolt of 1910.
August 20 » Extremely dry and windy weather in the Inland Northwest of the United States causes several small wildfires to coalesce into the Great Fire of 1910, burning approximately 3million acres (12,000km) and killing 87 people.
October 6 » Eleftherios Venizelos is elected prime minister of Greece for the first of seven times.
November 20 » Mexican Revolution: Francisco I. Madero issues the Plan de San Luis Potosí, denouncing Mexican President Porfirio Díaz, calling for a revolution to overthrow the government of Mexico, effectively starting the Mexican Revolution.
Day of death April 24, 1973
The temperature on April 24, 1973 was between 6.0 °C and 14.4 °C and averaged 9.2 °C. There was 0.1 mm of rain. There was 10.5 hours of sunshine (73%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
January 8 » Watergate scandal: The trial of seven men accused of illegal entry into Democratic Party headquarters at Watergate begins.
March 1 » Black September storms the Saudi embassy in Khartoum, Sudan, resulting in the assassination of three Western hostages.
March 17 » The Pulitzer Prize-winning photograph Burst of Joy is taken, depicting a former prisoner of war being reunited with his family, which came to symbolize the end of United States involvement in the Vietnam War.
October 30 » The Bosphorus Bridge in Turkey is completed, connecting the continents of Europe and Asia over the Bosphorus for the second time.
October 31 » Mountjoy Prison helicopter escape. Three Provisional Irish Republican Army members escape from Mountjoy Prison, Dublin aboard a hijacked helicopter that landed in the exercise yard.
November 25 » Georgios Papadopoulos, head of the military Regime of the Colonels in Greece, is ousted in a hardliners' coup led by Brigadier General Dimitrios Ioannidis.
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/I203111.php : accessed October 19, 2026), "Hendrik van der Zwaag (1886-1973)".
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