The temperature on October 17, 1912 was between 4.2 °C and 13.7 °C and averaged 10.1 °C. There was 1.8 mm of rain. There was 3.9 hours of sunshine (37%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 8 » The African National Congress is founded, under the name South African Native National Congress (SANNC).
April 16 » Harriet Quimby becomes the first woman to fly an airplane across the English Channel.
June 4 » Massachusetts becomes the first state of the United States to set a minimum wage.
October 18 » First Balkan War: King Peter I of Serbia issues a declaration "To the Serbian People", as his country joins the war.
December 8 » Leaders of the German Empire hold an Imperial War Council to discuss the possibility that war might break out.
December 28 » The first municipally owned streetcars take to the streets in San Francisco.
Day of marriage December 17, 1934
The temperature on December 17, 1934 was between 5.0 °C and 9.1 °C and averaged 7.0 °C. There was 3.1 mm of rain during 0.6 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 16 » The Austrian Civil War ends with the defeat of the Social Democrats and the Republikanischer Schutzbund.
April 12 » The strongest surface wind gust in the world at the time of 231mph, is measured on the summit of Mount Washington, New Hampshire. It has since been surpassed.
July 5 » "Bloody Thursday": Police open fire on striking longshoremen in San Francisco.
August 11 » The first civilian prisoners arrive at the Federal prison on Alcatraz Island.
August 19 » The German referendum of 1934 approves Hitler's appointment as head of state with the title of Führer.
September 8 » Off the New Jersey coast, a fire aboard the passenger liner SSMorro Castle kills 137 people.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I239911.php : accessed August 9, 2025), "Janna de Roo (1912-± 1997)".
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