February 1 » Shinhan Bank, the oldest bank in South Korea, opens in Seoul.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
December 30 » The British Colony of Natal annexes Zululand.
Day of death October 21, 1975
The temperature on October 21, 1975 was between 6.8 °C and 9.4 °C and averaged 7.8 °C. There was 0.6 mm of rain during 2.5 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
February 9 » The Soyuz 17 Soviet spacecraft returns to Earth.
February 13 » Fire at One World Trade Center (North Tower) of the World Trade Center in New York.
September 16 » The first prototype of the Mikoyan MiG-31 interceptor makes its maiden flight.
September 29 » WGPR becomes the first black-owned-and-operated television station in the US.
September 30 » The AH-64 Apache makes its first flight. Eight years later, the first production model rolled out of the assembly line.
November 11 » Australian constitutional crisis of 1975: Australian Governor-General Sir John Kerr dismisses the government of Gough Whitlam, appoints Malcolm Fraser as caretaker Prime Minister and announces a general election to be held in early December.
When copying data from this family tree, please include a reference to the origin: Hans Pruckmuller, "Family tree Van Willigen", database, Genealogy Online (https://www.genealogieonline.nl/van-willigen-stamboom/I3432.php : accessed February 25, 2026), "Heiltje van Willigen (1897-1975)".
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