April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
April 20 » Pierre and Marie Curie refine radium chloride.
November 21 » The Philadelphia Football Athletics defeated the Kanaweola Athletic Club of Elmira, New York, 39–0, in the first ever professional American football night game.
November 29 » The Pittsburgh Stars defeated the Philadelphia Athletics, 11–0 to win the first championship associated with an American national professional football league.
December 28 » The Syracuse Athletic Club defeated the New York Philadelphians, 5–0, in the first indoor professional football game, which was held at Madison Square Garden.
Day of death May 13, 1988
The temperature on May 13, 1988 was between 14.8 °C and 25.7 °C and averaged 20.1 °C. There was 13.1 hours of sunshine (84%). The almost cloudless was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
May 6 » All thirty-six passengers and crew were killed when Widerøe Flight 710 crashed into Mt. Torghatten in Brønnøy.
May 16 » A report by the Surgeon General of the United States C. Everett Koop states that the addictive properties of nicotine are similar to those of heroin and cocaine.
June 1 » European Central Bank is founded in Brussels.
August 21 » The 6.9 Mw Nepal earthquake shakes the Nepal–India border with a maximum Mercalli intensity of VIII (Severe), leaving 709–1,450 people killed and thousands injured.
December 7 » The 6.8 Ms Armenian earthquake shakes the northern part of the country with a maximum MSK intensity of X (Devastating), killing 25,000–50,000 and injuring 31,000–130,000.
December 21 » The first flight of Antonov An-225 Mriya, the largest aircraft in the world.
When copying data from this family tree, please include a reference to the origin: Van Knippenberg, "Family tree Van Knippenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-knippenberg/I7721.php : accessed February 24, 2026), "Mary Deyoung Knippenberg (1902-1988)".
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