The temperature on April 17, 1912 was between 1.7 °C and 15.3 °C and averaged 9.6 °C. There was 11.8 hours of sunshine (84%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
January 5 » The 6th All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens. In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
February 14 » Arizona is admitted as the 48th and the last contiguous U.S. state.
April 14 » The British passenger liner RMSTitanic hits an iceberg in the North Atlantic at 23:40 (sinks morning of April 15th).
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
December 28 » The first municipally owned streetcars take to the streets in San Francisco.
Day of marriage May 22, 1937
The temperature on May 22, 1937 was between 4.6 °C and 19.4 °C and averaged 13.6 °C. There was 11.1 hours of sunshine (69%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
April 1 » Spanish Civil War: Jaén, Spain is bombed by German fascist forces, supporting Francoist Nationalists.
May 12 » The Duke and Duchess of York are crowned as King George VI and Queen Elizabeth of the United Kingdom of Great Britain and Northern Ireland in Westminster Abbey.
May 21 » A Soviet station, North Pole-1, becomes the first scientific research settlement to operate on the drift ice of the Arctic Ocean.
June 15 » A German expedition led by Karl Wien loses sixteen members in an avalanche on Nanga Parbat. It is the worst single disaster to occur on an 8000m peak.
August 1 » Josip Broz Tito reads the resolution "Manifesto of constitutional congress of KPH" to the constitutive congress of KPH (Croatian Communist Party) in woods near Samobor.
December 9 » Second Sino-Japanese War: Battle of Nanking: Japanese troops under the command of Lt. Gen. Asaka Yasuhiko launch an assault on the Chinese city of Nanjing (Nanking).
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/I167537.php : accessed October 16, 2026), "Hendrikus Walda (1912-)".
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