July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of death April 25, 1917
The temperature on April 25, 1917 was between 3.5 °C and 7.9 °C and averaged 5.7 °C. There was 0.3 mm of rain. There was 0.6 hours of sunshine (4%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
February 3 » First World War: The American entry into World War I begins when diplomatic relations with Germany are severed due to its unrestricted submarine warfare.
March 8 » International Women's Day protests in St. Petersburg mark the beginning of the February Revolution (February 23rd in the Julian calendar).
March 26 » World War I: First Battle of Gaza: British troops are halted after 17,000 Turks block their advance.
August 6 » World War I: Battle of Mărășești between the Romanian and German armies begins.
November 5 » October Revolution: Lenin calls for the October Revolution.
November 20 » World War I: Battle of Cambrai begins: British forces make early progress in an attack on German positions but are later pushed back.
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/I108948.php : accessed October 19, 2026), "Pieter Johannes Veenstra (1897-1917)".
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