The temperature on August 23, 1873 was about 15.2 °C. There was 6 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 94%. Source: KNMI
From July 6, 1872 till August 27, 1874 the Netherlands had a cabinet De Vries - Fransen van de Putte with the prime ministers Mr. G. de Vries Azn. (liberaal) and I.D. Fransen van de Putte (liberaal).
February 18 » Bulgarian revolutionary leader Vasil Levski is executed by hanging in Sofia by the Ottoman authorities.
March 10 » The first Azerbaijani play "The Adventures of the Vizier of the Khan of Lenkaran" prepared by Akhundov was performed by Hassan-bey Zardabi and dramatist and Najaf-bey Vezirov.
March 22 » The Spanish National Assembly abolishes slavery in Puerto Rico.
July 1 » Prince Edward Island joins into Canadian Confederation.
August 2 » The Clay Street Hill Railroad begins operating the first cable car in San Francisco's famous cable car system.
August 23 » Albert Bridge in Chelsea, London opens.
Day of marriage May 11, 1907
The temperature on May 11, 1907 was between 10.7 °C and 26.6 °C and averaged 18.4 °C. There was 12.5 hours of sunshine (81%). 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.
January 6 » Maria Montessori opens her first school and daycare center for working class children in Rome, Italy.
May 28 » The first Isle of Man TT race was held.
July 7 » Florenz Ziegfeld Jr. staged his first Follies on the roof of the New York Theater in New York City.
August 29 » The Quebec Bridge collapses during construction, killing 75 workers.
November 7 » Jesús García saves the entire town of Nacozari de García by driving a burning train full of dynamite six kilometers (3.7 miles) away before it can explode.
December 10 » The worst night of the Brown Dog riots in London, when 1,000 medical students clash with 400 police officers over the existence of a memorial for animals that have been vivisected.
Day of death May 15, 1948
The temperature on May 15, 1948 was between 8.1 °C and 22.7 °C and averaged 16.2 °C. There was 14.0 hours of sunshine (89%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from July 3, 1946 to August 7, 1948 the cabinet Beel I, with Dr. L.J.M. Beel (KVP) as prime minister.
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
March 20 » With a Musicians Union ban lifted, the first telecasts of classical music in the United States, under Eugene Ormandy and Arturo Toscanini, are given on CBS and NBC.
March 25 » The first successful tornado forecast predicts that a tornado will strike Tinker Air Force Base, Oklahoma.
April 1 » Cold War: Communist forces respond to the introduction of the Deutsche Mark by attempting to force the western powers to withdraw from Berlin.
August 3 » Whittaker Chambers accuses Alger Hiss of being a communist and a spy for the Soviet Union.
August 12 » Babrra massacre: About 600 unarmed members of the Khudai Khidmatgar movement are shot dead on the orders of the Chief Minister of the North-West Frontier Province, Abdul Qayyum Khan Kashmiri, on Babrra ground in the Hashtnagar region of Charsadda District, North-West Frontier Province (now Khyber Pakhtunkhwa), Pakistan.
December 14 » Thomas T. Goldsmith Jr. and Estle Ray Mann are granted a patent for their cathode-ray tube amusement device, the earliest known interactive electronic game.
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/I55724.php : accessed October 17, 2026), "Ytje Helder (1873-1948)".
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