February 14 » The United States Department of Commerce and Labor is established (later split into the Department of Commerce and the Department of Labor).
March 2 » In New York City the Martha Washington Hotel opens, becoming the first hotel exclusively for women.
May 29 » In the May Coup, Alexander I, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (Crna Ruka) organization.
October 6 » The High Court of Australia sits for the first time.
November 18 » The Hay–Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
December 17 » The Wright brothers make the first controlled powered, heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
Day of marriage June 1, 1927
The temperature on June 1, 1927 was between 12.1 °C and 22.8 °C and averaged 15.7 °C. There was 27.8 mm of rain. There was 1.9 hours of sunshine (12%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
March 24 » Nanking Incident: Foreign warships bombard Nanjing, China, in defense of the foreign citizens within the city.
May 20 » Treaty of Jeddah: The United Kingdom recognizes the sovereignty of King Ibn Saud in the Kingdoms of Hejaz and Nejd, which later merge to become the Kingdom of Saudi Arabia.
September 22 » Jack Dempsey loses the "Long Count" boxing match to Gene Tunney.
October 25 » The Italian luxury liner SS Principessa Mafalda sinks off the coast of Brazil, killing 314.
December 8 » The Brookings Institution, one of the United States' oldest think tanks, is founded through the merger of three organizations that had been created by philanthropist Robert S. Brookings.
Day of death June 3, 1976
The temperature on June 3, 1976 was between 8.0 °C and 11.6 °C and averaged 9.6 °C. There was -0.1 mm of rain. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. 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.
March 4 » The Northern Ireland Constitutional Convention is formally dissolved in Northern Ireland resulting in direct rule of Northern Ireland from London by the British parliament.
July 10 » Four mercenaries (one American and three British) are executed in Angola following the Luanda Trial.
September 10 » A British Airways Hawker Siddeley Trident and an Inex-Adria DC-9 collide near Zagreb, Yugoslavia, killing 176.
September 16 » Armenian champion swimmer Shavarsh Karapetyan saves 20 people from a trolleybus that had fallen into a Yerevan reservoir.
September 19 » Turkish Airlines Flight 452 hits the Taurus Mountains, outskirt of Karatepe, Turkey, killing all 154 passengers and crew.
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/I202128.php : accessed September 25, 2026), "Harmke Kooistra (1903-1976)".
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