January 31 » Czechoslav Trade Union Association is founded in Prague.
April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
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.
May 26 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
Day of death April 7, 1912
The temperature on April 7, 1912 was between 6.4 °C and 12.6 °C and averaged 8.9 °C. There was 7.3 hours of sunshine (55%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
January 11 » Immigrant textile workers in Lawrence, Massachusetts, go on strike when wages are reduced in response to a mandated shortening of the work week.
March 30 » Sultan Abd al-Hafid signs the Treaty of Fez, making Morocco a French protectorate.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
October 24 » First Balkan War: The Battle of Kirk Kilisse concludes with a Bulgarian victory against the Ottoman Empire.
November 28 » Albania declares its independence from the Ottoman Empire.
December 19 » William Van Schaick, captain of the steamship General Slocum which caught fire and killed over one thousand people, is pardoned by U.S. President William Howard Taft after 3⁄2 years in Sing Sing prison.
When copying data from this family tree, please include a reference to the origin: E. Hillebregt - Zuiderwijk, "Family tree Scheffer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-scheffer/I129.php : accessed October 20, 2026), "Johanna Scheffer (1897-1912)".
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