The temperature on February 8, 1895 was about -7.7 °C. There was 0.2 mm of rain. The airpressure was 76 cm mercury. The atmospheric humidity was 88%. Source: KNMI
May 7 » In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector—a primitive radio receiver. In some parts of the former Soviet Union the anniversary of this day is celebrated as Radio Day.
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
October 21 » The Republic of Formosa collapses as Japanese forces invade.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
Day of death August 15, 1959
The temperature on August 15, 1959 was between 9.0 °C and 21.2 °C and averaged 15.9 °C. There was 6.9 hours of sunshine (47%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 4 » Luna 1 becomes the first spacecraft to reach the vicinity of the Moon.
January 29 » The first Melodifestivalen is held in Cirkus, Stockholm, Sweden.
August 21 » United States President Dwight D. Eisenhower signs an executive order proclaiming Hawaii the 50th state of the union. Hawaii's admission is currently commemorated by Hawaii Admission Day.
September 15 » Nikita Khrushchev becomes the first Soviet leader to visit the United States.
October 2 » Rod Serling's anthology series The Twilight Zone premieres on CBS. The first episode is “Where Is Everybody?”
November 20 » The Declaration of the Rights of the Child is adopted by the United Nations.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I29297.php : accessed February 14, 2026), "Nicolaas de Greef (1895-1959)".
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