February 6 » The Permanent Court of Arbitration, an international arbitration court at The Hague, is created when the Senate of the Netherlands ratifies an 1899 peace conference decree.
February 14 » British forces begin the Battle of the Tugela Heights in an effort to lift the Siege of Ladysmith.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
September 17 » Philippine–American War: Filipinos under Juan Cailles defeat Americans under Colonel Benjamin F. Cheatham Jr. at Mabitac.
October 25 » The United Kingdom annexes the Transvaal.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage February 4, 1930
The temperature on February 4, 1930 was between 1.4 °C and 5.6 °C and averaged 3.7 °C. There was 1.8 mm of rain during 2.8 hours. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 26 » The Indian National Congress declares 26 January as Independence Day or as the day for Poorna Swaraj ("Complete Independence") which occurred 17 years later.
January 31 » 3M begins marketing Scotch Tape.
March 29 » Heinrich Brüning is appointed German Reichskanzler.
May 7 » The 7.1 Mw Salmas earthquake shakes northwestern Iran and southeastern Turkey with a maximum Mercalli intensity of IX (Violent). Up to three-thousand people were killed.
September 17 » The Kurdish Ararat rebellion is suppressed by the Turks.
September 27 » Bobby Jones wins the (pre-Masters) Grand Slam of golf.
Day of death December 20, 1955
The temperature on December 20, 1955 was between -3.9 °C and 0.2 °C and averaged -1.5 °C. There was 0.2 mm of rain. There was 5.5 hours of sunshine (71%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
January 2 » Following the assassination of the Panamanian president José Antonio Remón Cantera, his deputy, José Ramón Guizado, takes power, but is quickly deposed after his involvement in Cantera's death is discovered.
April 3 » The American Civil Liberties Union announces it will defend Allen Ginsberg's book Howl against obscenity charges.
July 17 » Disneyland is dedicated and opened by Walt Disney in Anaheim, California.
July 27 » El Al Flight 402 is shot down by two fighter jets after straying into Bulgarian air space. All 58 people onboard are killed.
September 16 » The military coup to unseat President Juan Perón of Argentina is launched at midnight.
November 23 » The Cocos Islands are transferred from the control of the United Kingdom to that of Australia.
When copying data from this family tree, please include a reference to the origin: Ton Deunhouwer, "Family tree Dullemen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dullemen/I124167.php : accessed January 23, 2026), "Adrianus Johannes Boelen (1900-1955)".
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