April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
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).
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of death April 7, 1937
The temperature on April 7, 1937 was between 6.1 °C and 14.1 °C and averaged 10.5 °C. There was 7.5 mm of rain during 4.1 hours. There was 0.2 hours of sunshine (2%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 11 » The Flint sit-down strike ends when General Motors recognizes the United Auto Workers trade union.
April 1 » Spanish Civil War: Jaén, Spain is bombed by German fascist forces, supporting Francoist Nationalists.
May 30 » Memorial Day massacre: Chicago police shoot and kill ten labor demonstrators.
June 30 » The world's first emergency telephone number, 999, is introduced in London.
July 8 » Turkey, Iran, Iraq and Afghanistan sign the Treaty of Saadabad.
December 13 » Second Sino-Japanese War: Battle of Nanking: The city of Nanjing, defended by the National Revolutionary Army under the command of General Tang Shengzhi, falls to the Japanese. This is followed by the Nanking Massacre, in which Japanese troops rape and slaughter hundreds of thousands of civilians.
When copying data from this family tree, please include a reference to the origin: Herman Steinmeier, "Family tree Steinmeier/De Vries", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-steinmeier/R2945.php : accessed February 20, 2026), "Sophia Seinen (1897-1937)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.