The temperature on August 19, 1870 was about 14.7 °C. There was 2 mm of rain. The air pressure was 7 kgf/m2 and came mainly from the northwest. The airpressure was 75 cm mercury. The atmospheric humidity was 67%. 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 25 » Hiram Rhodes Revels, a Republican from Mississippi, is sworn into the United States Senate, becoming the first African American ever to sit in Congress.
March 16 » The first version of the overture fantasy Romeo and Juliet by Tchaikovsky receives its première performance.
June 26 » The Christian holiday of Christmas is declared a federal holiday in the United States.
July 15 » Rupert's Land and the North-Western Territory are transferred to Canada from the Hudson's Bay Company, and the province of Manitoba and the Northwest Territories are established from these vast territories.
August 18 » Franco-Prussian War: Battle of Gravelotte is fought.
September 19 » Franco-Prussian War: The siege of Paris begins. The city will hold out for over four months before surrendering.
Day of marriage May 13, 1905
The temperature on May 13, 1905 was between 5.0 °C and 12.1 °C and averaged 8.2 °C. There was 8.4 hours of sunshine (54%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from August 1, 1901 to August 16, 1905 the cabinet Kuijper, with Dr. A. Kuijper (AR) as prime minister.
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
February 5 » In Mexico, the General Hospital of Mexico is inaugurated, started with four basic specialties.
April 30 » Albert Einstein completes his doctoral thesis at the University of Zurich.
May 27 » Russo-Japanese War: The Battle of Tsushima begins.
August 10 » Russo-Japanese War: Peace negotiations begin in Portsmouth, New Hampshire.
September 1 » Alberta and Saskatchewan join the Canadian confederation.
November 21 » Albert Einstein's paper that leads to the mass–energy equivalence formula, E=mc², is published in the journal Annalen der Physik.
Day of death June 10, 1939
The temperature on June 10, 1939 was between 5.5 °C and 22.1 °C and averaged 15.1 °C. There was 14.1 hours of sunshine (85%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
February 27 » United States labor law: The U.S. Supreme Court rules in NLRB v. Fansteel Metallurgical Corp. that the National Labor Relations Board has no authority to force an employer to rehire workers who engage in sit-down strikes.
April 30 » The 1939–40 New York World's Fair opens.
August 2 » Albert Einstein and Leo Szilard write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to develop a nuclear weapon.
September 17 » World War II: German submarineU-29 sinks the British aircraft carrier HMSCourageous.
October 6 » World War II: The Battle of Kock is the final combat of the September Campaign in Poland.
December 18 » World War II: The Battle of the Heligoland Bight, the first major air battle of the war, takes place.
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/I62674.php : accessed October 19, 2026), "Roelof Boersma (1870-1939)".
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