January 17 » El Yunque National Forest in Puerto Rico becomes part of the United States National Forest System as the Luquillo Forest Reserve.
June 16 » The Ford Motor Company is incorporated.
July 4 » The Philippine–American War is officially concluded.
July 19 » Maurice Garin wins the first Tour de France.
October 31 » The Purdue Wreck, a railroad train collision in Indianapolis, kills 17 people, including 14 players of the Purdue University football team.
November 18 » The Hay–Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
Day of death July 23, 1991
The temperature on July 23, 1991 was between 12.4 °C and 27.0 °C and averaged 20.9 °C. There was 11.9 hours of sunshine (74%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. 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.
March 31 » Georgian independence referendum: Nearly 99 percent of the voters support the country's independence from the Soviet Union.
June 15 » In the Philippines, Mount Pinatubo erupts in the second largest volcanic eruption of the 20th century, killing over 800 people.
August 6 » Takako Doi, chair of the Social Democratic Party, becomes Japan's first female speaker of the House of Representatives.
September 19 » Ötzi the Iceman is discovered in the Alps on the border between Italy and Austria.
October 16 » George Hennard runs amok in Killeen, Texas, killing 23 and wounding 20.
December 25 » Mikhail Gorbachev resigns as President of the Soviet Union (the union itself is dissolved the next day). Ukraine's referendum is finalized and Ukraine officially leaves the Soviet Union.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I132941.php : accessed October 14, 2026), "Clara Koop (1903-1991)".
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