The temperature on April 28, 1909 was between 8.5 °C and 13.5 °C and averaged 10.5 °C. There was 9.8 hours of sunshine (67%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 9 » Ernest Shackleton, leading the Nimrod Expedition to the South Pole, plants the British flag 97 nautical miles (180km; 112mi) from the South Pole, the farthest anyone had ever reached at that time.
April 6 » Robert Peary and Matthew Henson become the first people to reach the North Pole; Peary's claim has been disputed because of failings in his navigational ability.
April 9 » The U.S. Congress passes the Payne–Aldrich Tariff Act.
April 11 » The city of Tel Aviv is founded.
April 14 » A massacre is organized by the Ottoman Empire against the Armenian population of Cilicia.
August 19 » The first automobile race at the Indianapolis Motor Speedway.
Day of death October 17, 1937
The temperature on October 17, 1937 was between 9.1 °C and 13.2 °C and averaged 11.1 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
February 19 » Yekatit 12: During a public ceremony at the Viceregal Palace (the former Imperial residence) in Addis Ababa, Ethiopia, two Ethiopian nationalists of Eritrean origin attempt to kill viceroy Rodolfo Graziani with a number of grenades.
March 18 » The New London School explosion in New London, Texas, kills 300 people, mostly children.
March 21 » Ponce massacre: Nineteen people in Ponce, Puerto Rico are gunned down by police acting on orders of the US-appointed Governor, Blanton C. Winship.
July 2 » Amelia Earhart and navigator Fred Noonan are last heard from over the Pacific Ocean while attempting to make the first equatorial round-the-world flight.
July 7 » The Marco Polo Bridge Incident provides the Imperial Japanese Army with a pretext for starting the Second Sino-Japanese War.
July 29 » Tōngzhōu Incident: In Tōngzhōu, China, the East Hopei Army attacks Japanese troops and civilians.
When copying data from this family tree, please include a reference to the origin: Matthijs Roelfes, "Family tree Roelfes", database, Genealogy Online (https://www.genealogieonline.nl/roelfes-stamboom/I0034.php : accessed February 17, 2026), "Johan Herman Roelfes (1909-1937)".
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