The temperature on July 15, 1868 was about 22.0 °C. The air pressure was 1 kgf/m2 and came mainly from the east-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 58%. 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 5 » Mefistofele, an opera by Arrigo Boito, receives its premiere performance at La Scala.
April 7 » Thomas D'Arcy McGee, one of the Canadian Fathers of Confederation, is assassinated by a Fenian activist.
May 30 » Decoration Day (the predecessor of the modern "Memorial Day") is observed in the United States for the first time after a proclamation by John A. Logan, head of the Grand Army of the Republic (a veterans group).
June 1 » The Treaty of Bosque Redondo is signed, allowing the Navajo to return to their lands in Arizona and New Mexico.
July 9 » The 14th Amendment to the United States Constitution is ratified, guaranteeing African Americans full citizenship and all persons in the United States due process of law.
December 25 » Pardons for ex-Confederates: United States President Andrew Johnson grants an unconditional pardon to all Confederate veterans.
Day of marriage May 13, 1899
The temperature on May 13, 1899 was about 11.3 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 79%. Source: KNMI
February 2 » The Australian Premiers' Conference held in Melbourne decides to locate Australia's capital city, Canberra, between Sydney and Melbourne.
February 6 » Spanish–American War: The Treaty of Paris, a peace treaty between the United States and Spain, is ratified by the United States Senate.
April 18 » The St. Andrew's Ambulance Association is granted a royal charter by Queen Victoria.
July 11 » Fiat founded by Giovanni Agnelli in Turin, Italy.
July 29 » The First Hague Convention is signed.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
Day of death November 27, 1960
The temperature on November 27, 1960 was between 5.0 °C and 10.6 °C and averaged 8.6 °C. There was 11.3 mm of rain during 13.8 hours. The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 28 » The National Football League announced expansion teams for Dallas to start in the 1960 NFL season and Minneapolis-St. Paul for 1961 NFL season.
February 26 » A New York-bound Alitalia airliner crashes into a cemetery in Shannon, Ireland, shortly after takeoff, killing 34 of the 52 persons on board.
May 16 » Theodore Maiman operates the first optical laser (a ruby laser), at Hughes Research Laboratories in Malibu, California.
August 6 » Cuban Revolution: Cuba nationalizes American and foreign-owned property in the nation.
September 14 » Congo Crisis: With CIA help, Mobutu Sese Seko seizes power in a military coup, suspending parliament and the constitution.
September 14 » The Organization of Petroleum Exporting Countries (OPEC) is founded.
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/I56555.php : accessed February 12, 2026), "Ymke Harmens Boelens (1868-1960)".
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