April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
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 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of death May 20, 1978
The temperature on May 20, 1978 was between 10.1 °C and 16.5 °C and averaged 12.3 °C. There was 2.5 hours of sunshine (16%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-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.
February 6 » The Blizzard of 1978, one of the worst Nor'easters in New England history, hit the region, with sustained winds of 65mph and snowfall of four inches an hour.
March 9 » President Soeharto inaugurated Jagorawi Toll Road, the first toll highway in Indonesia, connecting Jakarta, Bogor and Ciawi, West Java.
June 11 » Altaf Hussain founds the student political movement All Pakistan Muhajir Students Organisation (APMSO) in Karachi University.
July 10 » ABC World News Tonight premieres on ABC.
August 10 » Three members of the Ulrich family are killed in an accident. This leads to the Ford Pinto litigation.
December 15 » U.S. President Jimmy Carter announces that the United States will recognize the People's Republic of China and sever diplomatic relations with Taiwan.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I570764.php : accessed January 7, 2026), "Antje Prins (1897-1978)".
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