The temperature on July 21, 1877 was about 19.3 °C. The air pressure was 5 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 61%. 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.
May 9 » A magnitude 8.8 earthquake off the coast of Peru kills 2,541, including some as far away as Hawaii and Japan.
June 17 » American Indian Wars: Battle of White Bird Canyon: The Nez Perce defeat the U.S. Cavalry at White Bird Canyon in the Idaho Territory.
July 14 » The Great Railroad Strike of 1877 began in Martinsburg, West Virginia, when wages of Baltimore and Ohio Railroad workers were cut for the third time in a year. The strike was ended on Sept 4 by local and state militias, and federal troops.
July 21 » After rioting by Baltimore and Ohio Railroad workers and the deaths of nine rail workers at the hands of the Maryland militia, workers in Pittsburgh, Pennsylvania, stage a sympathy strike that is met with an assault by the state militia.
August 9 » Indian Wars: Battle of the Big Hole: A small band of Nez Percé Indians clash with the United States Army.
November 24 » Anna Sewell's animal welfare novel Black Beauty is published.
Day of marriage July 7, 1900
The temperature on July 7, 1900 was about 13.6 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 82%. Source: KNMI
February 14 » British forces begin the Battle of the Tugela Heights in an effort to lift the Siege of Ladysmith.
February 27 » Second Boer War: In South Africa, British military leaders receive an unconditional notice of surrender from Boer General Piet Cronjé at the Battle of Paardeberg.
May 22 » The Associated Press is formed in New York City as a non-profit news cooperative.
June 5 » Second Boer War: British soldiers take Pretoria.
June 21 » Boxer Rebellion. China formally declares war on the United States, Britain, Germany, France and Japan, as an edict issued from the Empress Dowager Cixi.
July 9 » The Governor of Shanxi province in North China orders the execution of 45 foreign Christian missionaries and local church members, including children.
Day of death November 6, 1950
The temperature on November 6, 1950 was between 3.5 °C and 7.1 °C and averaged 5.4 °C. There was 0.2 mm of rain during 0.3 hours. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 14 » The first prototype of the MiG-17 makes its maiden flight.
July 20 » Cold War: In Philadelphia, Harry Gold pleads guilty to spying for the Soviet Union by passing secrets from atomic scientist Klaus Fuchs.
September 3 » "Nino" Farina becomes the first Formula One Drivers' champion after winning the 1950 Italian Grand Prix.
September 23 » Korean War: The Battle of Hill 282 is the first US friendly-fire incident on British military personnel since World War II.
October 11 » CBS's field-sequential color system for television is the first to be licensed for broadcast by the U.S. Federal Communications Commission.
November 8 » Korean War: United States Air Force Lt. Russell J. Brown, while piloting an F-80 Shooting Star, shoots down two North Korean MiG-15s in the first jet aircraft-to-jet aircraft dogfight in history.
When copying data from this family tree, please include a reference to the origin: Gert Pieters, "Family tree Koops", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koops/I1327.php : accessed January 25, 2026), "Aaltien de Roo (1877-1950)".
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