The temperature on April 5, 1911 was between -5.5 °C and 1.7 °C and averaged -2.2 °C. There was 7.7 hours of sunshine (58%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
January 21 » The first Monte Carlo Rally takes place.
March 25 » In New York City, the Triangle Shirtwaist Factory fire kills 146 garment workers.
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.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
December 27 » "Jana Gana Mana", the national anthem of India, is first sung in the Calcutta Session of the Indian National Congress.
Christening day October 15, 1911
The temperature on October 15, 1911 was between 8.2 °C and 11.2 °C and averaged 9.9 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
May 31 » The President of Mexico Porfirio Díaz flees the country during the Mexican Revolution.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of death September 24, 1995
The temperature on September 24, 1995 was between 11.4 °C and 17.8 °C and averaged 13.5 °C. There was 6.3 mm of rain during 6.6 hours. There was 3.9 hours of sunshine (32%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
April 19 » Oklahoma City bombing: The Alfred P. Murrah Federal Building in Oklahoma City, USA, is bombed, killing 168 people including 19 children under the age of six.
June 29 » The Sampoong Department Store collapses in the Seocho District of Seoul, South Korea, killing 501 and injuring 937.
July 9 » The Navaly church bombing is carried out by the Sri Lanka Air Force killing 125 Tamil civilian refugees.
July 23 » Comet Hale–Bopp is discovered; it becomes visible to the naked eye on Earth nearly a year later.
August 5 » Yugoslav Wars: The city of Knin, Croatia, a significant Serb stronghold, is captured by Croatian forces during Operation Storm. The date is celebrated in Croatia as Victory Day.
October 15 » Marco Campos dies in a race at the Circuit de Nevers Magny-Cours, the only driver ever killed in the International Formula 3000 series.
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/I66521.php : accessed December 29, 2025), "Roelof Oosterhoff (1911-1995)".
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