January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
March 13 » British forces occupy Bloemfontein, Orange Free State, during the Second Boer War.
May 23 » American Civil War: Sergeant William Harvey Carney is awarded the Medal of Honor for his heroism in the Assault on the Battery Wagner in 1863.
June 14 » The second German Naval Law calls for the Imperial German Navy to be doubled in size, resulting in an Anglo-German naval arms race.
June 18 » Empress Dowager Cixi of China orders all foreigners killed, including foreign diplomats and their families.
Day of marriage May 28, 1927
The temperature on May 28, 1927 was between 2.3 °C and 13.6 °C and averaged 8.2 °C. There was 1.3 mm of rain. There was 8.8 hours of sunshine (54%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
January 1 » New Mexican oil legislation goes into effect, leading to the formal outbreak of the Cristero War.
March 11 » In New York City, Samuel Roxy Rothafel opens the Roxy Theatre.
March 15 » The first Women's Boat Race between the University of Oxford and the University of Cambridge takes place on The Isis in Oxford.
April 14 » The first Volvo car premieres in Gothenburg, Sweden.
May 1 » The Union Labor Life Insurance Company is founded by the American Federation of Labor.
May 4 » The Academy of Motion Picture Arts and Sciences is incorporated.
Day of death December 30, 1960
The temperature on December 30, 1960 was between -1.1 °C and 4.0 °C and averaged 1.7 °C. There was 4.4 mm of rain during 4.6 hours. There was 0.4 hours of sunshine (5%). The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 25 » The National Association of Broadcasters reacts to the "payola" scandal by threatening fines for any disc jockeys who accept money for playing particular records.
April 9 » Dr Hendrik Verwoerd, Prime Minister of South Africa and architect of apartheid, narrowly survives an assassination attempt by a white farmer, David Pratt in Johannesburg.
July 1 » Ghana becomes a republic and Kwame Nkrumah becomes its first President as Queen Elizabeth II ceases to be its head of state.
August 12 » Echo 1A, NASA's first successful communications satellite, is launched.
November 25 » The Mirabal sisters of the Dominican Republic are assassinated.
November 28 » Mauritania becomes independent of France.
When copying data from this family tree, please include a reference to the origin: Hans Dunning, "Family tree Dunning", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dunning/R4103.php : accessed March 11, 2026), "Geert Hartman (1900-1960)".
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