The temperature on September 12, 1910 was between 8.4 °C and 17.8 °C and averaged 12.6 °C. There was 1.9 mm of rain. There was 2.2 hours of sunshine (17%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
April 28 » Frenchman Louis Paulhan wins the 1910 London to Manchester air race, the first long-distance aeroplane race in England.
June 2 » Charles Rolls, a co-founder of Rolls-Royce Limited, becomes the first man to make a non-stop double crossing of the English Channel by plane.
June 25 » The United States Congress passes the Mann Act, which prohibits interstate transport of women or girls for “immoral purposes”; the ambiguous language would be used to selectively prosecute people for years to come.
July 4 » The Johnson–Jeffries riots occur after African-American boxer Jack Johnson knocks out white boxer Jim Jeffries in the 15th round. Between 11 and 26 people are killed and hundreds more injured.
November 14 » Aviator Eugene Burton Ely performs the first takeoff from a ship in Hampton Roads, Virginia, taking off from a makeshift deck on the USS Birmingham in a Curtiss pusher.
November 23 » Johan Alfred Ander becomes the last person to be executed in Sweden.
Day of marriage July 13, 1939
The temperature on July 13, 1939 was between 6.5 °C and 22.9 °C and averaged 15.4 °C. There was 10.5 hours of sunshine (64%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
June 1 » First flight of the German Focke-Wulf Fw 190 fighter aircraft.
September 6 » World War II: South Africa declares war on Nazi Germany.
September 18 » World War II: The Polish government of Ignacy Mościcki flees to Romania.
October 8 » World War II: Germany annexes western Poland.
November 8 » In Munich, Adolf Hitler narrowly escapes the assassination attempt of Georg Elser while celebrating the 16th anniversary of the Beer Hall Putsch.
December 18 » World War II: The Battle of the Heligoland Bight, the first major air battle of the war, takes place.
Day of death February 28, 1976
The temperature on February 28, 1976 was between 1.5 °C and 12.7 °C and averaged 6.2 °C. There was 8.2 hours of sunshine (76%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
January 5 » The Troubles: Gunmen shoot dead ten Protestant civilians after stopping their minibus at Kingsmill in County Armagh, Northern Ireland, UK, allegedly as retaliation for a string of attacks on Catholic civilians in the area by Loyalists, particularly the killing of six Catholics the night before.
April 9 » The EMD F40PH diesel locomotive enters revenue service with Amtrak.
June 27 » Air France Flight 139 (Tel Aviv-Athens-Paris) is hijacked en route to Paris by the PLO and redirected to Entebbe, Uganda.
July 17 » East Timor is annexed, and becomes the 27th province of Indonesia.
September 3 » Viking program: The American Viking 2 spacecraft lands at Utopia Planitia on Mars.
September 10 » A British Airways Hawker Siddeley Trident and an Inex-Adria DC-9 collide near Zagreb, Yugoslavia, killing 176.
When copying data from this family tree, please include a reference to the origin: Rik Plomp, "Pedigree Plomp", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plomp/I3087.php : accessed February 23, 2026), "Roelofje de Boer (1910-1976)".
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