February 23 » Émile Zola is imprisoned in France after writing J'Accuse…!, a letter accusing the French government of antisemitism and wrongfully imprisoning Captain Alfred Dreyfus.
April 21 » Spanish–American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date.
April 25 » Spanish–American War: The United States declares war on Spain.
July 25 » Spanish-American War: The American invasion of Spanish-held Puerto Rico begins, as United States Army troops under General Nelson A. Miles land and secure the port at Guánica.
August 28 » Caleb Bradham's beverage "Brad's Drink" is renamed "Pepsi-Cola".
November 10 » Beginning of the Wilmington insurrection of 1898, the only instance of a municipal government being overthrown in United States history.
Day of death June 4, 1941
The temperature on June 4, 1941 was between 10.9 °C and 25.7 °C and averaged 18.6 °C. There was 0.1 mm of rain during 0.1 hours. There was 11.7 hours of sunshine (71%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
May 27 » World War II: U.S. President Franklin D. Roosevelt proclaims an "unlimited national emergency".
July 31 » The Holocaust: Under instructions from Adolf Hitler, Nazi official Hermann Göring, orders SS General Reinhard Heydrich to "submit to me as soon as possible a general plan of the administrative material and financial measures necessary for carrying out the desired Final Solution of the Jewish question."
October 9 » A coup in Panama declares Ricardo Adolfo de la Guardia Arango the new president.
October 30 » Holocaust: Fifteen hundred Jews from Pidhaytsi are sent by Nazis to Bełżec extermination camp.
November 13 » World War II: The aircraft carrier HMSArk Royal is torpedoed by U-81, sinking the following day.
When copying data from this family tree, please include a reference to the origin: P. Heres, "Family tree Eilander", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eilander/I1099495177.php : accessed February 26, 2026), "Jacob van Olst (1873-1941)".
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.