April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage October 12, 1916
The temperature on October 12, 1916 was between 13.9 °C and 17.2 °C and averaged 14.6 °C. There was 1.7 hours of sunshine (16%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
May 6 » Twenty-one Lebanese nationalists are executed in Martyrs' Square, Beirut by Djemal Pasha.
May 6 » Vietnamese Emperor Duy Tân is captured while calling upon the people to rise up against the French, and is later deposed and exiled to Réunion island.
June 29 » British diplomat turned Irish nationalist Roger Casement is sentenced to death for his part in the Easter Rising.
August 25 » The United States National Park Service is created.
October 7 » Georgia Tech defeats Cumberland University 222–0 in the most lopsided college football game in American history.
December 23 » World War I: Battle of Magdhaba: Allied forces defeat Turkish forces in the Sinai Peninsula.
Day of death May 27, 1969
The temperature on May 27, 1969 was between 4.5 °C and 19.4 °C and averaged 12.8 °C. There was 1.2 mm of rain during 2.2 hours. There was 8.5 hours of sunshine (52%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
March 17 » Golda Meir becomes the first female Prime Minister of Israel.
April 9 » The first British-built Concorde 002 makes its maiden flight from Filton to RAF Fairford.
July 24 » Apollo program: Apollo 11 splashes down safely in the Pacific Ocean.
July 30 » Vietnam War: US President Richard Nixon makes an unscheduled visit to South Vietnam and meets with President Nguyễn Văn Thiệu and U.S. military commanders.
August 14 » The Troubles: British troops are deployed in Northern Ireland as political and sectarian violence breaks out, marking the start of the 37-year Operation Banner.
November 20 » Vietnam War: The Plain Dealer (Cleveland, Ohio) publishes explicit photographs of dead villagers from the My Lai Massacre in Vietnam.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I96843.php : accessed February 14, 2026), "Jacoba Groote (1897-1969)".
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