March 1 » Battle of Adwa: An Ethiopian army defeats an outnumbered Italian force, ending the First Italo-Ethiopian War.
April 15 » Closing ceremony of the Games of the I Olympiad in Athens, Greece.
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.
July 9 » William Jennings Bryan delivers his Cross of Gold speech advocating bimetallism at the 1896 Democratic National Convention in Chicago.
December 10 » Alfred Jarry's Ubu Roi premieres in Paris. A riot breaks out at the end of the performance.
Day of marriage December 20, 1928
The temperature on December 20, 1928 was between -0.6 °C and 1.9 °C and averaged 1.1 °C. There was 3.5 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
September 27 » The Republic of China is recognized by the United States.
October 1 » The Soviet Union introduces its first five-year plan.
October 2 » The "Prelature of the Holy Cross and the Work of God", commonly known as Opus Dei, is founded.
October 12 » An iron lung respirator is used for the first time at Children's Hospital, Boston.
November 12 » SSVestris sinks approximately 200 miles (320km) off Hampton Roads, Virginia, killing at least 110 passengers, mostly women and children who die after the vessel is abandoned.
Day of death May 17, 1980
The temperature on May 17, 1980 was between 6.4 °C and 19.7 °C and averaged 14.8 °C. There was 9.5 hours of sunshine (60%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. 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.
January 28 » USCGCBlackthorn collides with the tanker Capricorn while leaving Tampa, Florida and capsizes, killing 23 Coast Guard crewmembers.
February 28 » Andalusia approves its statute of autonomy through a referendum.
May 18 » Mount St. Helens erupts in Washington, United States, killing 57 people and causing $3billion in damage.
June 3 » The 1980 Grand Island tornado outbreak hits Nebraska, causing five deaths and $300million (equivalent to $931million in 2019) worth of damage.
August 19 » Saudia Flight 163, a Lockheed L-1011 TriStar burns after making an emergency landing at King Khalid International Airport in Riyadh, Saudi Arabia, killing 301 people.
October 26 » The Peter Muhlenberg Memorial in Washington, D.C. is dedicated.
When copying data from this family tree, please include a reference to the origin: Marjon Root, "Family tree Root, Brinksma, Van Schoten en Molen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-root/I2934.php : accessed October 21, 2026), "Gertrud Ritterhaus (1896-1980)".
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