The temperature on June 23, 1888 was about 21.0 °C. The air pressure was 4 kgf/m2 and came mainly from the east-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 70%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
January 13 » The National Geographic Society is founded in Washington, D.C.
March 20 » The premiere of the very first Romani language operetta is staged in Moscow, Russia.
April 6 » Thomas Green Clemson dies, bequeathing his estate to the State of South Carolina to establish Clemson Agricultural College.
August 5 » Bertha Benz drives from Mannheim to Pforzheim and back in the first long distance automobile trip, commemorated as the Bertha Benz Memorial Route since 2008.
September 4 » George Eastman registers the trademark Kodak and receives a patent for his camera that uses roll film.
October 29 » The Convention of Constantinople is signed, guaranteeing free maritime passage through the Suez Canal during war and peace.
Day of marriage June 23, 1920
The temperature on June 23, 1920 was between 9.2 °C and 20.6 °C and averaged 14.7 °C. There was 4.2 hours of sunshine (25%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 19 » The American Civil Liberties Union (ACLU) is founded.
February 13 » The Negro National League is formed.
February 14 » The League of Women Voters is founded in Chicago.
February 24 » The Nazi Party (NSDAP) was founded by Adolf Hitler in the Hofbräuhaus beer hall in Munich, Germany
March 12 » The Kapp Putsch begins when the Marinebrigade Ehrhardt is ordered to march on Berlin.
March 14 » In the second of the 1920 Schleswig plebiscites, about 80% of the population in Zone II votes to remain part of Weimar Germany.
Day of death May 22, 1969
The temperature on May 22, 1969 was between 5.8 °C and 15.4 °C and averaged 10.4 °C. There was 12.1 hours of sunshine (76%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
February 4 » Yasser Arafat takes over as chairman of the Palestine Liberation Organization.
April 17 » Communist Party of Czechoslovakia chairman Alexander Dubček is deposed.
July 16 » Apollo program: Apollo 11, the first mission to land astronauts on the Moon, is launched from the Kennedy Space Center at Cape Kennedy, Florida.
August 14 » The Troubles: British troops are deployed in Northern Ireland as political and sectarian violence breaks out, marking the start of the 37-year Operation Banner.
October 1 » Concorde breaks the sound barrier for the first time.
November 20 » Vietnam War: The Plain Dealer (Cleveland, Ohio) publishes explicit photographs of dead villagers from the My Lai Massacre in Vietnam.
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/I200697.php : accessed December 27, 2025), "Martina Petronella de Boer (1888-1969)".
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