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.
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 6 » London becomes the world's first city to host licensed taxicabs.
December 30 » The British Colony of Natal annexes Zululand.
Day of death April 7, 1981
The temperature on April 7, 1981 was between 3.6 °C and 14.9 °C and averaged 9.5 °C. There was -0.1 mm of rain. There was 4.2 hours of sunshine (32%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south-southwest. 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.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
February 8 » Twenty-one association football spectators are trampled to death at Karaiskakis Stadium in Neo Faliro, Greece, after a football match between Olympiacos F.C. and AEK Athens F.C.
March 11 » Hundreds of students protest in the University of Pristina in Kosovo, then part of Yugoslavia, to give their province more political rights. The protests then became a nationwide movement.
July 29 » A worldwide television audience of over 700million people watch the wedding of Charles, Prince of Wales, and Lady Diana Spencer at St Paul's Cathedral in London.
August 5 » President Ronald Reagan fires 11,359 striking air-traffic controllers who ignored his order for them to return to work.
August 7 » The Washington Star ceases all operations after 128 years of publication.
September 21 » Sandra Day O'Connor is unanimously approved by the U.S. Senate as the first female Supreme Court justice.
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/I592759.php : accessed February 4, 2026), "Ezra Anton Moen (1897-1981)".
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