The temperature on December 28, 1888 was about 3.7 °C. The air pressure was 16 kgf/m2 and came mainly from the south-southeast. The airpressure was 75 cm mercury. The atmospheric humidity was 86%. 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.
April 3 » The first of eleven unsolved brutal murders of women committed in or near the impoverished Whitechapel district in the East End of London, occurs.
May 13 » With the passage of the Lei Áurea ("Golden Law"), Empire of Brazil abolishes slavery.
August 21 » The first successful adding machine in the United States is patented by William Seward Burroughs.
October 14 » Louis Le Prince films the first motion picture, Roundhay Garden Scene.
October 21 » Foundation of the Swiss Social Democratic Party.
October 29 » The Convention of Constantinople is signed, guaranteeing free maritime passage through the Suez Canal during war and peace.
Day of marriage May 21, 1908
The temperature on May 21, 1908 was between 8.0 °C and 24.4 °C and averaged 15.7 °C. There was 9.4 mm of rain. There was 7.5 hours of sunshine (47%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
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.
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
January 28 » Members of the Portuguese Republican Party fail in their attempted coup d'état against the administrative dictatorship of Prime Minister João Franco.
April 8 » H. H. Asquith of the Liberal Party takes office as Prime Minister of the United Kingdom, succeeding Sir Henry Campbell-Bannerman.
April 8 » Harvard University votes to establish the Harvard Business School.
May 10 » Mother's Day is observed for the first time in the United States, in Grafton, West Virginia.
July 1 » SOS is adopted as the international distress signal.
July 26 » United States Attorney General Charles Joseph Bonaparte issues an order to immediately staff the Office of the Chief Examiner (later renamed the Federal Bureau of Investigation).
Day of death June 15, 1964
The temperature on June 15, 1964 was between 8.1 °C and 18.6 °C and averaged 14.0 °C. There was 0.5 mm of rain during 0.6 hours. There was 4.8 hours of sunshine (29%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 12 » Rebels in Zanzibar begin a revolt known as the Zanzibar Revolution and proclaim a republic.
January 25 » Blue Ribbon Sports, which would later become Nike, is founded by University of Oregon track and field athletes.
June 11 » World War II veteran Walter Seifert attacks an elementary school in Cologne, Germany, killing at least eight children and two teachers and seriously injuring several more with a home-made flamethrower and a lance.
September 21 » The North American XB-70 Valkyrie, the world's fastest bomber, makes its maiden flight from Palmdale, California.
November 2 » King Saud of Saudi Arabia is deposed by a family coup, and replaced by his half-brother Faisal.
December 22 » The first test flight of the SR-71 (Blackbird) takes place at Air Force Plant 42 in Palmdale, California, United States.
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/I77244.php : accessed October 2, 2026), "Boelina van der Leij (1888-1964)".
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