The temperature on April 21, 1886 was about 6.3 °C. The air pressure was 4 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 89%. 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.
March 27 » Geronimo, Apache warrior, surrenders to the U.S. Army, ending the main phase of the Apache Wars.
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 8 » Pharmacist John Pemberton first sells a carbonated beverage named "Coca-Cola" as a patent medicine.
June 10 » Mount Tarawera in New Zealand erupts, killing 153 people and burying the famous Pink and White Terraces. Eruptions continue for three months creating a large, 17km long fissure across the mountain peak.
July 3 » Karl Benz officially unveils the Benz Patent-Motorwagen, the first purpose-built automobile.
September 4 » American Indian Wars: After almost 30 years of fighting, Apache leader Geronimo, with his remaining warriors, surrenders to General Nelson Miles in Arizona.
Day of marriage December 3, 1910
The temperature on December 3, 1910 was between 0.9 °C and 3.6 °C and averaged 2.4 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
June 17 » Aurel Vlaicu pilots an A. Vlaicu nr. 1 on its first flight.
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
September 22 » The Duke of York's Picture House opens in Brighton, now the oldest continually operating cinema in Britain.
September 26 » Indian journalist Swadeshabhimani Ramakrishna Pillai is arrested after publishing criticism of the government of Travancore and is exiled.
October 22 » Hawley Harvey Crippen (the first felon to be arrested with the help of radio) is convicted of poisoning his wife.
November 10 » The date of Thomas A. Davis' opening of the San Diego Army and Navy Academy, although the official founding date is November 23, 1910.
Day of death November 5, 1958
The temperature on November 5, 1958 was between 5.0 °C and 10.0 °C and averaged 7.7 °C. There was 0.3 hours of sunshine (3%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
March 16 » The Ford Motor Company produces its 50 millionth automobile, the Thunderbird, averaging almost a million cars a year since the company's founding.
May 30 » Memorial Day: The remains of two unidentified American servicemen, killed in action during World War II and the Korean War respectively, are buried at the Tomb of the Unknown Soldier in Arlington National Cemetery.
August 18 » Brojen Das from Bangladesh swims across the English Channel in a competition, as the first Bengali and the first Asian to do so. He came first among 39 competitors.
September 12 » Jack Kilby demonstrates the first working integrated circuit while working at Texas Instruments.
October 7 » The U.S. manned space-flight project is renamed Project Mercury.
December 9 » The John Birch Society is founded in the United States.
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/I51314.php : accessed October 17, 2026), "Pieter Helmus (1886-1958)".
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