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.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of death April 23, 1972
The temperature on April 23, 1972 was between 4.6 °C and 10.2 °C and averaged 7.0 °C. There was 1.7 hours of sunshine (12%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from April 5, 1967 to Tuesday, July 6, 1971 the cabinet Biesheuvel I, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
January 20 » Pakistan launched its nuclear weapons program, a few weeks after its defeat in the Bangladesh Liberation War, as well as the Indo-Pakistani War of 1971.
February 28 » China–United States relations: The United States and China sign the Shanghai Communiqué.
March 22 » The United States Congress sends the Equal Rights Amendment to the states for ratification.
June 8 » Vietnam War: Nine-year-old Phan Thị Kim Phúc is burned by napalm, an event captured by Associated Press photographer Nick Ut moments later while the young girl is seen running down a road, in what would become an iconic, Pulitzer Prize-winning photo.
June 18 » Staines air disaster: One hundred eighteen people are killed when a BEA H.S. Trident crashes two minutes after take off from London's Heathrow Airport.
November 7 » US President Richard Nixon is re-elected President.
When copying data from this family tree, please include a reference to the origin: Martin Senger, "Senger/Spaeder Genealogy", database, Genealogy Online (https://www.genealogieonline.nl/senger-spaeder-genealogy/P340.php : accessed April 30, 2024), "Bertha M Strieder (1897-1972)".
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