February 1 » La bohème premieres in Turin at the Teatro Regio (Turin), conducted by the young Arturo Toscanini.
March 1 » Henri Becquerel discovers radioactive decay.
June 15 » The deadliest tsunami in Japan's history kills more than 22,000 people.
June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
September 21 » Anglo-Egyptian conquest of Sudan: British forces under the command of Horatio Kitchener take Dongola.
November 17 » The Western Pennsylvania Hockey League, which later became the first ice hockey league to openly trade and hire players, began play at Pittsburgh's Schenley Park Casino.
Day of death July 22, 1991
The temperature on July 22, 1991 was between 8.9 °C and 22.7 °C and averaged 17.2 °C. There was 11.0 hours of sunshine (69%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
May 28 » The capital city of Addis Ababa falls to the Ethiopian People's Revolutionary Democratic Front, ending both the Derg regime in Ethiopia and the Ethiopian Civil War.
June 10 » Eleven-year-old Jaycee Lee Dugard is kidnapped in South Lake Tahoe, California; she would remain a captive until 2009.
August 20 » Estonia, occupied by and incorporated into the Soviet Union in 1940, issues a decision on the re-establishment of independence on the basis of legal continuity of its pre-occupation statehood.
August 21 » Latvia declares renewal of its full independence after its occupation by the Soviet Union since 1940.
August 24 » Mikhail Gorbachev resigns as head of the Communist Party of the Soviet Union.
October 15 » The "Oh-My-God particle", an ultra-high-energy cosmic ray measured at 40,000,000 times that of the highest energy protons produced in a particle accelerator is observed at the University of Utah HiRes observatory in Dugway Proving Ground, Utah.
When copying data from this family tree, please include a reference to the origin: Ferry Hegeman, "Family tree Hegeman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-hegeman/I89902.php : accessed March 3, 2026), "Anna Isabella van Erp (1896-1991)".
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