The temperature on May 29, 1881 was about 15.8 °C. The air pressure was 2 kgf/m2 and came mainly from the east. The airpressure was 76 cm mercury. The atmospheric humidity was 42%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
February 14 » The United States Department of Commerce and Labor is established (later split into the Department of Commerce and the Department of Labor).
May 29 » In the May Coup, Alexander I, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (Crna Ruka) organization.
June 11 » A group of Serbian officers stormed the royal palace and assassinated King Alexander Obrenović and his wife, Queen Draga.
July 23 » The Ford Motor Company sells its first car.
October 10 » The Women's Social and Political Union is founded in support of the enfranchisement of British women.
November 18 » The Hay–Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
Day of death September 23, 1967
The temperature on September 23, 1967 was between 10.5 °C and 18.4 °C and averaged 13.8 °C. There was 6.1 hours of sunshine (50%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
April 9 » The first Boeing 737 (a 100 series) makes its maiden flight.
May 17 » Six-Day War: President Gamal Abdel Nasser of Egypt demands dismantling of the peace-keeping UN Emergency Force in Egypt.
June 14 » Mariner program: Mariner 5 is launched towards Venus.
August 14 » UK Marine Broadcasting Offences Act declares participation in offshore pirate radio illegal.
November 21 » Vietnam War: American General William Westmoreland tells news reporters: "I am absolutely certain that whereas in 1965 the enemy was winning, today he is certainly losing."
November 30 » Pro-Soviet communists in the Philippines establish Malayang Pagkakaisa ng Kabataan Pilipino as its new youth wing.
When copying data from this family tree, please include a reference to the origin: W.A. Waslander, "Family tree Waslander", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-waslander/I725.php : accessed February 13, 2026), "Roelof Alberts (1881-1967)".
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