March 4 » The longest bridge in Great Britain, the Forth Bridge in Scotland, measuring 1,710 feet (520m) long, is opened by the Duke of Rothesay, later King Edward VII.
March 20 » Prime Minister of the German Empire Otto von Bismarck is dismissed by Emperor Wilhelm II.
July 3 » Idaho is admitted as the 43rd U.S. state.
October 11 » In Washington, D.C., the Daughters of the American Revolution is founded.
November 23 » King William III of the Netherlands dies without a male heir and a special law is passed to allow his daughter Princess Wilhelmina to succeed him.
December 15 » Hunkpapa Lakota leader Sitting Bull is killed on Standing Rock Indian Reservation, leading to the Wounded Knee Massacre.
Day of death March 12, 1939
The temperature on March 12, 1939 was between -1.4 °C and 6.5 °C and averaged 2.6 °C. There was 9.3 hours of sunshine (80%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
February 27 » United States labor law: The U.S. Supreme Court rules in NLRB v. Fansteel Metallurgical Corp. that the National Labor Relations Board has no authority to force an employer to rehire workers who engage in sit-down strikes.
March 17 » Second Sino-Japanese War: Battle of Nanchang between the Kuomintang and Japan begins.
September 1 » Adolf Hitler signs an order to begin the systematic euthanasia of mentally ill and disabled people.
September 28 » World War II: The siege of Warsaw comes to an end.
November 17 » Nine Czech students are executed as a response to anti-Nazi demonstrations prompted by the death of Jan Opletal. All Czech universities are shut down and more than 1,200 students sent to concentration camps. Since this event, International Students' Day is celebrated in many countries, especially in the Czech Republic.
November 30 » Winter War: Soviet forces cross the Finnish border in several places and bomb Helsinki and several other Finnish cities, starting the war.
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I6824.php : accessed February 9, 2026), "PIETER LANGELAAR (1890-1939)".
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