The temperature on April 27, 1873 was about 4.3 °C. There was 4 mm of rain. The air pressure was 18 kgf/m2 and came mainly from the north-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 83%. 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 1 » E. Remington and Sons in Ilion, New York begins production of the first practical typewriter.
May 20 » Levi Strauss and Jacob Davis receive a U.S. patent for blue jeans with copper rivets.
August 2 » The Clay Street Hill Railroad begins operating the first cable car in San Francisco's famous cable car system.
August 4 » American Indian Wars: While protecting a railroad survey party in Montana, the United States 7th Cavalry, under Lieutenant Colonel George Armstrong Custer clashes for the first time with the Cheyenne and Lakota people near the Tongue River; only one man on each side is killed.
September 18 » The bank Jay Cooke & Company declares bankruptcy, contributing to the Panic of 1873.
When copying data from this family tree, please include a reference to the origin: Ruud Heemskerk, "Heemskerk door de eeuwen heen", database, Genealogy Online (https://www.genealogieonline.nl/heemskerk-door-de-eeuwen-heen/R1135.php : accessed May 5, 2025), "Dirk Johan Valkenburg van Herwerden (1873-????)".
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