The temperature on April 22, 1909 was between 6.1 °C and 19.2 °C and averaged 11.3 °C. There was 10.3 hours of sunshine (72%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
January 25 » Richard Strauss's opera Elektra receives its debut performance at the Dresden State Opera.
March 10 » By signing the Anglo-Siamese Treaty of 1909, Thailand relinquishes its sovereignty over the Malay states of Kedah, Kelantan, Perlis and Terengganu, which become British protectorates.
July 25 » Louis Blériot makes the first flight across the English Channel in a heavier-than-air machine from Calais to Dover, England, United Kingdom in 37 minutes.
August 19 » The first automobile race at the Indianapolis Motor Speedway.
September 7 » Eugène Lefebvre crashes a new French-built Wright biplane during a test flight at Juvisy, south of Paris, becoming the first aviator in the world to lose his life in a powered heavier-than-air craft.
November 18 » Two United States warships are sent to Nicaragua after 500 revolutionaries (including two Americans) are executed by order of José Santos Zelaya.
Day of marriage March 14, 1961
The temperature on March 14, 1961 was between 7.3 °C and 12.5 °C and averaged 9.6 °C. There was 1.1 hours of sunshine (9%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
January 24 » Goldsboro B-52 crash: A bomber carrying two H-bombs breaks up in mid-air over North Carolina. The uranium core of one weapon remains lost.
May 31 » In Moscow City Court, the Rokotov–Faibishenko show trial begins, despite the Khrushchev Thaw to reverse Stalinist elements in Soviet society.
June 23 » The Antarctic Treaty System, which sets aside Antarctica as a scientific preserve and limits military activity on the continent, its islands and ice shelves, comes into force.
August 25 » President Jânio Quadros of Brazil resigns after just seven months in power, initiating a political crisis that culminates in a military coup in 1964.
September 16 » Pakistan establishes its Space and Upper Atmosphere Research Commission with Abdus Salam as its head.
October 30 » The Soviet Union detonates the Tsar Bomba, the most powerful explosive device ever detonated.
Day of death February 15, 1970
The temperature on February 15, 1970 was between -9.7 °C and -2.3 °C and averaged -5.3 °C. There was 1.8 mm of rain during 1.2 hours. There was 0.4 hours of sunshine (4%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
March 6 » An explosion at the Weather Underground safe house in Greenwich Village kills three.
April 15 » During the Cambodian Civil War, massacre of the Vietnamese minority results in 800 bodies flowing down the Mekong river into South Vietnam.
October 26 » Muhammad Ali boxes for the first time after Ali's three-year hiatus due to draft evasion.
November 17 » Vietnam War: Lieutenant William Calley goes on trial for the My Lai Massacre.
December 2 » The United States Environmental Protection Agency begins operations.
December 23 » The Democratic Republic of the Congo officially becomes a one-party state.
Day of burial February 19, 1970
The temperature on February 19, 1970 was between -5.5 °C and 4.3 °C and averaged 0.1 °C. There was 4.8 mm of rain during 5.1 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 1 » The defined beginning of Unix time, at 00:00:00.
April 28 » Vietnam War: U.S. President Richard Nixon formally authorizes American combat troops to take part in the Cambodian campaign.
April 29 » Vietnam War: United States and South Vietnamese forces invade Cambodia to hunt Viet Cong.
May 26 » The Soviet Tupolev Tu-144 becomes the first commercial transport to exceed Mach 2.
August 9 » LANSA Flight 502 crashes after takeoff from Alejandro Velasco Astete International Airport in Cusco, Peru, killing 99 of the 100 people on board, as well as two people on the ground.
November 5 » The Military Assistance Command, Vietnam reports the lowest weekly American soldier death toll in five years (24).
When copying data from this family tree, please include a reference to the origin: DJ Steenbergen, "Steenbergen - Dutch Australian - Lineages", database, Genealogy Online (https://www.genealogieonline.nl/steenbergen-lineages/I899.php : accessed February 5, 2026), "Piet REITSMA (1909-1970)".
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