The temperature on May 7, 1877 was about 16.5 °C. The air pressure was 3 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 30%. Source: KNMI
From August 27, 1874 till November 3, 1877 the Netherlands had a cabinet Heemskerk - Van Lijnden van Sandenburg with the prime ministers Mr. J. Heemskerk Azn. (conservatief) and Mr. C.Th. baron Van Lijnden van Sandenburg (AR).
In The Netherlands , there was from November 3, 1877 to August 20, 1879 the cabinet Kappeijne van de Coppello, with Mr. J. Kappeijne van de Coppello (liberaal) as prime minister.
January 20 » The last day of the Constantinople Conference results in agreement for political reforms in the Balkans.
February 20 » Tchaikovsky's ballet Swan Lake receives its premiere at the Bolshoi Theatre in Moscow.
April 12 » The United Kingdom annexes the Transvaal.
April 24 » Russo-Turkish War: Russian Empire declares war on Ottoman Empire.
May 8 » At Gilmore's Gardens in New York City, the first Westminster Kennel Club Dog Show opens.
September 5 » American Indian Wars: Oglala Sioux chief Crazy Horse is bayoneted by a United States soldier after resisting confinement in a guardhouse at Fort Robinson in Nebraska.
Day of marriage May 6, 1903
The temperature on May 6, 1903 was between 9.0 °C and 17.5 °C and averaged 12.2 °C. There was 7.5 hours of sunshine (49%). Source: KNMI
June 11 » A group of Serbian officers stormed the royal palace and assassinated King Alexander Obrenović and his wife, Queen Draga.
August 29 » The Slava, the last of the five Borodino-class battleships, is launched.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
November 18 » The Hay–Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
December 14 » The Wright brothers make their first attempt to fly with the Wright Flyer at Kitty Hawk, North Carolina.
December 17 » The Wright brothers make the first controlled powered, heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
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/I84795.php : accessed October 3, 2026), "Hendrik Koops (1877-????)".
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