The temperature on December 20, 1870 was about -2.5 °C. There was 2 mm of rain. The air pressure was 12 kgf/m2 and came mainly from the east-northeast. The airpressure was 75 cm mercury. The atmospheric humidity was 92%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
February 9 » US president Ulysses S. Grant signs a joint resolution of Congress establishing the U.S. Weather Bureau.
February 28 » The Bulgarian Exarchate is established by decree of Sultan Abdülaziz of the Ottoman Empire.
April 13 » The New York City Metropolitan Museum of Art is founded.
July 19 » Franco-Prussian War: France declares war on Prussia.
September 4 » Emperor Napoleon III of France is deposed and the Third Republic is declared.
September 18 » Old Faithful Geyser is observed and named by Henry D. Washburn.
Day of death May 21, 1967
The temperature on May 21, 1967 was between 8.8 °C and 17.4 °C and averaged 13.4 °C. There was 9.9 hours of sunshine (62%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 12 » Dr. James Bedford becomes the first person to be cryonically preserved with intent of future resuscitation.
February 10 » The 25th Amendment to the United States Constitution is ratified.
May 13 » Dr. Zakir Husain becomes the third President of India. He is the first Muslim President of the Indian Union. He holds this position until August 24, 1969.
July 23 » Detroit Riots: In Detroit, one of the worst riots in United States history begins on 12th Street in the predominantly African American inner city. It ultimately kills 43 people, injures 342 and burns about 1,400 buildings.
September 4 » Vietnam War: Operation Swift begins when U.S. Marines engage the North Vietnamese in battle in the Que Son Valley.
October 8 » Guerrilla leader Che Guevara and his men are captured in Bolivia.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I593129.php : accessed March 6, 2026), "Folkert Hendriks "Folkert" Koopmans (1870-1967)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.