January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 18 » Second Boer War: Imperial forces suffer their worst single-day loss of life on Bloody Sunday, the first day of the Battle of Paardeberg.
May 26 » Thousand Days' War: The Colombian Conservative Party turns the tide of war in their favor with victory against the Colombian Liberal Party in the Battle of Palonegro.
June 5 » Second Boer War: British soldiers take Pretoria.
October 9 » The Cook Islands become a territory of the United Kingdom.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage June 20, 1928
The temperature on June 20, 1928 was between 7.5 °C and 17.0 °C and averaged 12.3 °C. There was 4.8 mm of rain. There was 0.6 hours of sunshine (4%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
March 21 » Charles Lindbergh is presented with the Medal of Honor for the first solo trans-Atlantic flight.
April 12 » The Bremen, a German Junkers W 33 type aircraft, takes off for the first successful transatlantic aeroplane flight from east to west.
August 27 » The Kellogg–Briand Pact outlawing war is signed by fifteen nations. Ultimately sixty-one nations will sign it.
October 12 » An iron lung respirator is used for the first time at Children's Hospital, Boston.
October 15 » The airship, Graf Zeppelin completes its first trans-Atlantic flight, landing at Lakehurst, New Jersey, United States.
November 12 » SSVestris sinks approximately 200 miles (320km) off Hampton Roads, Virginia, killing at least 110 passengers, mostly women and children who die after the vessel is abandoned.
Day of death December 12, 1967
The temperature on December 12, 1967 was between -2.0 and 2.3 °C. There was 2.8 mm of rain during 6.7 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
March 26 » Ten thousand people gather for one of many Central Park be-ins in New York City.
April 24 » Vietnam War: American General William Westmoreland says in a news conference that the enemy had "gained support in the United States that gives him hope that he can win politically that which he cannot win militarily".
May 24 » Egypt imposes a blockade and siege of the Red Sea coast of Israel.
November 7 » US President Lyndon B. Johnson signs the Public Broadcasting Act of 1967, establishing the Corporation for Public Broadcasting.
November 22 » UN Security Council Resolution 242 is adopted, establishing a set of the principles aimed at guiding negotiations for an Arab–Israeli peace settlement.
November 30 » The Pakistan Peoples Party is founded by Zulfikar Ali Bhutto, who becomes its first chairman.
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/I11983.php : accessed February 13, 2026), "Willem Bulder (1900-1967)".
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