January 31 » Czechoslav Trade Union Association is founded in Prague.
February 1 » Shinhan Bank, the oldest bank in South Korea, opens in Seoul.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
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 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
Day of marriage April 16, 1921
The temperature on April 16, 1921 was between -4.1 °C and 6.6 °C and averaged 1.1 °C. There was 2.5 mm of rain. There was 2.2 hours of sunshine (16%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 21 » Rezā Shāh takes control of Tehran during a successful coup.
March 18 » The second Peace of Riga is signed between Poland and the Soviet Union.
July 10 » Belfast's Bloody Sunday: Sixteen people are killed and 161 houses destroyed during rioting and gun battles in Belfast, Northern Ireland.
July 11 » A truce in the Irish War of Independence comes into effect.
October 5 » The World Series is the first to be broadcast on radio.
October 29 » United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
Day of death March 5, 1969
The temperature on March 5, 1969 was between -4.8 °C and 6.9 °C and averaged 0.6 °C. There was 9.3 hours of sunshine (84%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
February 4 » Yasser Arafat takes over as chairman of the Palestine Liberation Organization.
May 10 » Vietnam War: The Battle of Dong Ap Bia begins with an assault on Hill 937. It will ultimately become known as Hamburger Hill.
October 1 » Concorde breaks the sound barrier for the first time.
November 15 » Cold War: The Soviet submarine K-19 collides with the American submarine USS Gato in the Barents Sea.
December 9 » U.S. Secretary of State William P. Rogers proposes his plan for a ceasefire in the War of Attrition; Egypt and Jordan accept it over the objections of the PLO, which leads to civil war in Jordan in September 1970.
December 24 » Nigerian troops capture Umuahia, the Biafran capital.
When copying data from this family tree, please include a reference to the origin: Hans Middendorp, "Family Tree Family tree Kraster uit de Kalkwijk bij Sappemeer in Groningen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kraster/I10376.php : accessed January 21, 2026), "Ettje Jongstra (1897-1969)".
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.