The temperature on October 12, 1911 was between 2.2 °C and 15.5 °C and averaged 8.3 °C. There was 8.4 hours of sunshine (77%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
December 27 » "Jana Gana Mana", the national anthem of India, is first sung in the Calcutta Session of the Indian National Congress.
Day of marriage July 21, 1939
The temperature on July 21, 1939 was between 11.4 °C and 23.9 °C and averaged 18.2 °C. There was 4.5 mm of rain during 1.1 hours. There was 10.3 hours of sunshine (64%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. 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.
January 13 » The Black Friday bushfires burn 20,000 square kilometers of land in Australia, claiming the lives of 71 people.
March 3 » In Bombay, Mohandas Gandhi begins a hunger strike in protest at the autocratic rule in British India.
March 16 » From Prague Castle, Hitler proclaims Bohemia and Moravia a German protectorate.
April 18 » Robert Menzies, who became Australia's longest-serving prime minister, is elected as leader of the United Australia Party after the death of Prime Minister Joseph Lyons.
September 2 » World War II: Following the start of the invasion of Poland the previous day, the Free City of Danzig (now Gdańsk, Poland) is annexed by Nazi Germany.
December 27 » The 7.8 Mw Erzincan earthquake shakes eastern Turkey with a maximum Mercalli intensity of XI (Extreme). At least 32,700 people were killed.
When copying data from this family tree, please include a reference to the origin: Eva Drenth, "Family tree Diverse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-drenth/I4952.php : accessed March 16, 2026), "Petronella Catharina van Gemert (1911-)".
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