February 2 » The Australian Premiers' Conference held in Melbourne decides to locate Australia's capital city, Canberra, between Sydney and Melbourne.
June 7 » American Temperance crusader Carrie Nation begins her campaign of vandalizing alcohol-serving establishments by destroying the inventory in a saloon in Kiowa, Kansas.
July 11 » Fiat founded by Giovanni Agnelli in Turin, Italy.
September 13 » Mackinder, Ollier and Brocherel make the first ascent of Batian (5,199 m - 17,058ft), the highest peak of Mount Kenya.
November 2 » The Boers begin their 118-day siege of British-held Ladysmith during the Second Boer War.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
Day of marriage September 6, 1917
The temperature on September 6, 1917 was between 11.2 °C and 24.0 °C and averaged 17.7 °C. There was 11.0 hours of sunshine (83%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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.
January 31 » World War I: Germany announces that its U-boats will resume unrestricted submarine warfare after a two-year hiatus.
March 4 » Jeannette Rankin of Montana becomes the first female member of the United States House of Representatives.
March 25 » The Georgian Orthodox Church restores its autocephaly abolished by Imperial Russia in 1811.
March 26 » World War I: First Battle of Gaza: British troops are halted after 17,000 Turks block their advance.
October 12 » World War I: The First Battle of Passchendaele takes place resulting in the largest single-day loss of life in New Zealand history.
November 7 » World War I: Third Battle of Gaza ends: British forces capture Gaza from the Ottoman Empire.
Day of death November 19, 1965
The temperature on November 19, 1965 was between -1.9 °C and 1.7 °C and averaged 0.4 °C. There was 2.3 mm of rain during 1.9 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
March 2 » The US and Republic of Vietnam Air Force begin Operation Rolling Thunder, a sustained bombing campaign against North Vietnam.
May 27 » Vietnam War: American warships begin the first bombardment of National Liberation Front targets within South Vietnam.
June 19 » Nguyễn Cao Kỳ becomes Prime Minister of South Vietnam at the head of a military junta; General Nguyễn Văn Thiệu becomes the figurehead chief of state.
August 1 » Frank Herbert's novel, Dune was published for the first time. It was named as the world's best-selling science fiction novel in 2003.
September 9 » Hurricane Betsy makes its second landfall near New Orleans, leaving 76 dead and $1.42 billion ($10–12 billion in 2005 dollars) in damages, becoming the first hurricane to cause over $1 billion in unadjusted damage.
September 21 » The Gambia, Maldives and Singapore are admitted as members of the United Nations.
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I5798.php : accessed February 17, 2026), "Roelof de Wolf (1899-1965)".
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