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).
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
December 30 » The British Colony of Natal annexes Zululand.
Day of death February 11, 1981
The temperature on February 11, 1981 was between -2.4 °C and 4.2 °C and averaged 0.6 °C. There was 0.6 mm of rain during 1.1 hours. There was 5.9 hours of sunshine (61%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
February 6 » The National Resistance Army of Uganda launches an attack on a Ugandan Army installation in the central Mubende District to begin the Ugandan Bush War.
April 9 » The U.S. Navy nuclear submarine USSGeorge Washington accidentally collides with the Nissho Maru, a Japanese cargo ship, sinking it.
June 7 » The Israeli Air Force destroys Iraq's Osiraq nuclear reactor during Operation Opera.
August 19 » Gulf of Sidra Incident: United States fighters intercept and shoot down two Libyan Sukhoi Su-22 fighter jets over the Gulf of Sidra.
August 24 » Mark David Chapman is sentenced to 20 years to life in prison for murdering John Lennon.
September 21 » Sandra Day O'Connor is unanimously approved by the U.S. Senate as the first female Supreme Court justice.
When copying data from this family tree, please include a reference to the origin: René de Wildt, "Family tree Kim de Wildt", database, Genealogy Online (https://www.genealogieonline.nl/kims-stamboom/I2489.php : accessed January 27, 2026), "Adriana Hoefnagels (1897-1981)".
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