The temperature on April 30, 1866 was about 10.4 °C. The air pressure was 18 kgf/m2 and came mainly from the east-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 33%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
January 12 » The Royal Aeronautical Society is formed in London.
February 16 » Spencer Compton Cavendish, Marquess of Hartington becomes British Secretary of State for War.
April 4 » Alexander II of Russia narrowly escapes an assassination attempt by Dmitry Karakozov in the city of Saint Petersburg.
May 22 » Oliver Winchester founded the Winchester Repeating Arms
August 17 » The Grand Duchy of Baden announces her withdrawal from the German Confederation and signs a treaty of peace and alliance with Prussia.
October 19 » In accordance with the Treaty of Vienna, Austria cedes Veneto and Mantua to France, which immediately awards them to Italy in exchange for the earlier Italian acquiescence to the French annexation of Savoy and Nice.
Day of death August 30, 1942
The temperature on August 30, 1942 was between 16.6 °C and 24.4 °C and averaged 19.6 °C. There was 1.1 mm of rain during 0.2 hours. There was 5.5 hours of sunshine (40%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
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.
January 30 » World War II: Battle of Ambon. Japanese forces invade the island of Ambon in the Dutch East Indies. Some 300 captured Allied troops are massacred at Laha airfield. Three-fourths of remaining POWs will not have survived by the end of the war, including 250 men who will be shipped to Hainan Island in South China Sea and never returned.
March 17 » Holocaust: The first Jews from the Lvov Ghetto are gassed at the Belzec death camp in what is today eastern Poland.
May 6 » World War II: On Corregidor, the last American forces in the Philippines surrender to the Japanese.
July 18 » The Germans test fly the Messerschmitt Me 262 using its jet engines for the first time.
August 21 » World War II: The Guadalcanal Campaign: American forces defeat an attack by Imperial Japanese Army soldiers in the Battle of the Tenaru.
December 6 » World War II in villages Stary Ciepielów and Rekówka German Genarmerie massacred 31 Poles for helping the Jews. Also, two Jewish refugees were murdered.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I283384.php : accessed February 21, 2026), "Cornelis Roovers (1866-1942)".
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