The temperature on October 12, 1911 was between 2.2 °C and 15.5 °C and averaged 8.3 °C. There was 8.4 hours of sunshine (77%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
Day of marriage June 30, 1941
The temperature on June 30, 1941 was between 11.2 °C and 20.3 °C and averaged 14.6 °C. There was 7.0 hours of sunshine (42%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 4 » The United Service Organization (USO) is created to entertain American troops.
April 27 » World War II: The Communist Party of Slovenia, the Slovene Christian Socialists, the left-wing Slovene Sokols (also known as "National Democrats") and a group of progressive intellectuals establish the Liberation Front of the Slovene Nation.
June 23 » The Lithuanian Activist Front declares independence from the Soviet Union and forms the Provisional Government of Lithuania; it lasts only briefly as the Nazis will occupy Lithuania a few weeks later.
August 31 » World War II: Serbian paramilitary forces defeat Germans in the Battle of Loznica.
October 4 » Norman Rockwell's Willie Gillis character debuts on the cover of The Saturday Evening Post.
December 11 » World War II: Poland declares war on the Empire of Japan.
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/I259409.php : accessed February 20, 2026), "Hendrik Vredeveld (1911-)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.