The temperature on May 13, 1915 was between 6.4 °C and 12.2 °C and averaged 8.1 °C. There was 23.0 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 13 » The 6.7 Mw Avezzano earthquake shakes the Province of L'Aquila in Italy with a maximum Mercalli intensity of XI (Extreme), killing between 29,978–32,610.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
April 5 » Boxing challenger Jess Willard knocks out Jack Johnson in Havana, Cuba to become the Heavyweight Champion of the World.
May 22 » Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century.
July 5 » The Liberty Bell leaves Philadelphia by special train on its way to the Panama–Pacific International Exposition. This is the last trip outside Philadelphia that the custodians of the bell intend to permit.
August 6 » World War I: Battle of Sari Bair: The Allies mount a diversionary attack timed to coincide with a major Allied landing of reinforcements at Suvla Bay.
Day of marriage May 20, 1940
The temperature on May 20, 1940 was between 5.5 °C and 19.6 °C and averaged 12.6 °C. There was 13.3 hours of sunshine (84%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
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.
May 5 » World War II: Norwegian refugees form a government-in-exile in London.
June 18 » The "Finest Hour" speech is delivered by Winston Churchill.
July 5 » World War II: Foreign relations of Vichy France are severed with the United Kingdom.
July 27 » The animated short A Wild Hare is released, introducing the character of Bugs Bunny.
November 12 » World War II: The Battle of Gabon ends as Free French Forces take Libreville, Gabon, and all of French Equatorial Africa from Vichy French forces.
November 25 » World War II: First flights of both the de Havilland Mosquito and Martin B-26 Marauder.
When copying data from this family tree, please include a reference to the origin: John en Jannie Anker, "Family tree Spijkerman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-spijkerman/I128.php : accessed January 6, 2026), "Egbert Smit (1915-)".
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