The temperature on May 31, 1868 was about 19.6 °C. The air pressure was 6 kgf/m2 and came mainly from the northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 45%. Source: KNMI
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
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).
March 1 » The Pi Kappa Alpha fraternity is founded at the University of Virginia.
March 5 » Mefistofele, an opera by Arrigo Boito, receives its premiere performance at La Scala.
April 11 » Former shōgun Tokugawa Yoshinobu surrenders Edo Castle to Imperial forces, marking the end of the Tokugawa shogunate.
September 19 » La Gloriosa begins in Spain.
September 28 » The Battle of Alcolea causes Queen Isabella II of Spain to flee to France.
November 4 » Camagüey, Cuba, revolts against Spain during the Ten Years' War.
Day of marriage August 7, 1895
The temperature on August 7, 1895 was about 14.7 °C. There was 0.3 mm of rain. The airpressure was 75 cm mercury. The atmospheric humidity was 93%. Source: KNMI
January 13 » First Italo-Ethiopian War: the war's opening battle, the Battle of Coatit, occurs; it is an Italian victory.
March 15 » Heian Shrine is founded.
March 19 » Auguste and Louis Lumière record their first footage using their newly patented cinematograph.
March 22 » Before the Société pour L'Encouragement à l'Industrie, brothers Auguste and Louis Lumière demonstrate movie film technology publicly for the first time.
August 31 » German Count Ferdinand von Zeppelin patents his navigable balloon.
November 27 » At the Swedish–Norwegian Club in Paris, Alfred Nobel signs his last will and testament, setting aside his estate to establish the Nobel Prize after he dies.
Day of death May 21, 1945
The temperature on May 21, 1945 was between 9.0 °C and 13.1 °C and averaged 11.6 °C. There was 18.9 mm of rain during 9.8 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from February 23, 1945 to June 24, 1945 the cabinet Gerbrandy III, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
February 23 » World War II: The capital of the Philippines, Manila, is liberated by combined Filipino and American forces.
April 14 » Razing of Friesoythe: The 4th Canadian (Armoured) Division deliberately destroyed the German town of Friesoythe on the orders of Major General Christopher Vokes.
May 3 » World War II: Sinking of the prison ships Cap Arcona, Thielbek and Deutschland by the Royal Air Force in Lübeck Bay.
August 15 » Jewel Voice Broadcast by the Emperor Showa following effective surrender of Japan in the World War II, Korea gains Independence from the Empire of Japan.
September 2 » Vietnam declares its independence, forming the Democratic Republic of Vietnam.
October 5 » A six-month strike by Hollywood set decorators turns into a bloody riot at the gates of the Warner Brothers studio.
When copying data from this family tree, please include a reference to the origin: Michiel van Loon, "Family tree Van Loon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-loon/I9044.php : accessed February 19, 2026), "Pieter Jacobus Klopper (1868-1945)".
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