March 6 » Bayer registers "Aspirin" as a trademark.
March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
July 29 » The First Hague Convention is signed.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
Day of marriage June 1, 1921
The temperature on June 1, 1921 was between 9.2 °C and 23.9 °C and averaged 17.0 °C. There was 12.8 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. 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.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
April 11 » Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.
May 8 » The creation of the Communist Party of Romania.
May 19 » The United States Congress passes the Emergency Quota Act establishing national quotas on immigration.
July 11 » A truce in the Irish War of Independence comes into effect.
October 21 » President Warren G. Harding delivers the first speech by a sitting U.S. President against lynching in the deep South.
Day of death January 30, 1994
The temperature on January 30, 1994 was between 5.0 °C and 9.8 °C and averaged 7.3 °C. There was 1.6 mm of rain during 2.9 hours. There was 4.1 hours of sunshine (46%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
January 6 » American figure skater Nancy Kerrigan is attacked and injured by an assailant hired by her rival Tonya Harding's ex-husband during the U.S. Figure Skating Championships that they were both taking part in.
January 11 » The Irish Government announces the end of a 15-year broadcasting ban on the IRA and its political arm Sinn Féin.
September 3 » Sino-Soviet split: Russia and the People's Republic of China agree to de-target their nuclear weapons against each other.
November 9 » The chemical element darmstadtium is discovered.
December 11 » A bomb explodes on Philippine Airlines Flight 434, en route from Manila, Philippines, to Tokyo, Japan, killing one. The captain is able to safely land the plane.
December 29 » Turkish Airlines Flight 278 (a Boeing 737-400) crashes on approach to Van Ferit Melen Airport in Van, Turkey, killing 57 of the 76 people on board.
Check the information Open Archives has about Harkema.
Check the Wie (onder)zoekt wie? register to see who is (re)searching Harkema.
The Genealogische database Eisenga publication was prepared by Ruut Eisenga (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Ruut Eisenga, "Genealogische database Eisenga", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-eisenga/I5534.php : accessed March 6, 2026), "Jantje Harkema (1899-1994)".
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.