The temperature on May 2, 1913 was between 6.9 °C and 13.5 °C and averaged 9.6 °C. There was 2.7 mm of rain. There was 3.8 hours of sunshine (25%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
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.
January 5 » First Balkan War: The Battle of Lemnos begins; Greek admiral Pavlos Kountouriotis forces the Turkish fleet to retreat to its base within the Dardanelles, from which it did not venture for the rest of the war.
February 20 » King O'Malley drives in the first survey peg to mark commencement of work on the construction of Canberra.
March 3 » Thousands of women march in the Woman Suffrage Procession in Washington, D.C.
March 12 » The future capital of Australia is officially named Canberra.
October 14 » Senghenydd colliery disaster, the United Kingdom's worst coal mining accident, claims the lives of 439 miners.
December 1 » Crete, having obtained self rule from Turkey after the First Balkan War, is annexed by Greece.
Day of death September 17, 1970
The temperature on September 17, 1970 was between 10.0 °C and 18.2 °C and averaged 14.0 °C. There was 0.1 mm of rain during 0.2 hours. There was 4.8 hours of sunshine (38%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 15 » Nigerian Civil War: Biafran rebels surrender following an unsuccessful 32-month fight for independence from Nigeria.
March 10 » Vietnam War: Captain Ernest Medina is charged by the U.S. military with My Lai war crimes.
April 13 » An oxygen tank aboard the Apollo 13 Service Module explodes, putting the crew in great danger and causing major damage to the Apollo command and service module (codenamed "Odyssey") while en route to the Moon.
May 15 » Philip Lafayette Gibbs and James Earl Green are killed at Jackson State University by police during student protests.
August 24 » Vietnam War protesters bomb Sterling Hall at the University of Wisconsin–Madison, leading to an international manhunt for the perpetrators.
September 1 » Palestinian guerrillas attack the motorcade of King Hussein of Jordan in a failed assassination attempt.
When copying data from this family tree, please include a reference to the origin: Yolande Harps, "Family tree Harps (Harp)", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-harps/I149.php : accessed February 26, 2026), "Roelof Johannes Harps (1913-1970)".
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