January 12 » The National Trust is founded in the United Kingdom.
March 15 » Heian Shrine is founded.
March 19 » Auguste and Louis Lumière record their first footage using their newly patented cinematograph.
August 31 » German Count Ferdinand von Zeppelin patents his navigable balloon.
September 18 » The Atlanta Exposition Speech on race relations is delivered by Booker T. Washington.
October 22 » In Paris an express train derails after overrunning the buffer stop, crossing almost 30 metres (100ft) of concourse before crashing through a wall and falling 10 metres (33ft) to the road below.
Day of marriage June 30, 1917
The temperature on June 30, 1917 was between 13.6 °C and 17.2 °C and averaged 15.0 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
January 19 » Silvertown explosion: A blast at a munitions factory in London kills 73 and injures over 400. The resulting fire causes over £2,000,000 worth of damage.
April 16 » Vladimir Lenin returns to Petrograd, Russia, from exile in Switzerland.
May 13 » Three children report the first apparition of Our Lady of Fátima in Fátima, Portugal.
October 15 » World War I: Dutch dancer Mata Hari is executed by France for espionage.
October 26 » First World War: Brazil declares war on the Central Powers.
November 26 » The Manchester Guardian publishes the 1916 secret Sykes-Picot Agreement between the United Kingdom and France.
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/I130659.php : accessed October 25, 2026), "Maatje Leerstra (1895-????)".
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