The temperature on March 7, 1868 was about 5.1 °C. There was 0.7 mm of rain. The air pressure was 6 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 93%. 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).
May 14 » Boshin War: The Battle of Utsunomiya Castle ends as former Tokugawa shogunate forces withdraw northward.
May 16 » The United States Senate fails to convict President Andrew Johnson by one vote.
June 10 » Mihailo Obrenović III, Prince of Serbia is assassinated.
August 18 » French astronomer Pierre Janssen discovers helium.
October 10 » The Ten Years' War begins against Spanish rule in Cuba.
November 3 » John Willis Menard (R-Louisiana) was the first African American elected to the United States Congress. Because of an electoral challenge, he was never seated.
Day of marriage March 13, 1890
The temperature on March 13, 1890 was about 7.1 °C. The air pressure was 1 kgf/m2 and came mainly from the south-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 79%. Source: KNMI
January 22 » The United Mine Workers of America is founded in Columbus, Ohio.
March 4 » The longest bridge in Great Britain, the Forth Bridge in Scotland, measuring 1,710 feet (520m) long, is opened by the Duke of Rothesay, later King Edward VII.
April 7 » Completion of the first Lake Biwa Canal.
July 3 » Idaho is admitted as the 43rd U.S. state.
September 12 » Salisbury, Rhodesia, is founded.
December 30 » Following the Wounded Knee Massacre, the United States Army and Lakota warriors face off in the Drexel Mission Fight.
Day of death March 13, 1935
The temperature on March 13, 1935 was between -1.2 °C and 11.6 °C and averaged 4.5 °C. There was 9.4 hours of sunshine (81%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: D. v.d. Werff v.d. Mije, "Family tree Bol", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-bol/I80.php : accessed February 3, 2026), "Willem Koper (1868-1935)".
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