The temperature on June 18, 1956 was between 7.7 °C and 15.2 °C and averaged 12.2 °C. There was 0.7 mm of rain during 1.2 hours. There was 1.7 hours of sunshine (10%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
February 20 » The United States Merchant Marine Academy becomes a permanent Service Academy.
May 20 » In Operation Redwing, the first United States airborne hydrogen bomb is dropped over Bikini Atoll in the Pacific Ocean.
June 20 » A Venezuelan Super-Constellation crashes in the Atlantic Ocean off Asbury Park, New Jersey, killing 74 people.
July 16 » Ringling Bros. and Barnum & Bailey Circus closes its last "Big Tent" show in Pittsburgh, Pennsylvania; due to changing economics, all subsequent circus shows will be held in arenas.
September 27 » USAF Captain Milburn G. Apt becomes the first person to exceed Mach 3. Shortly thereafter, the Bell X-2 goes out of control and Captain Apt is killed.
October 17 » The first commercial nuclear power station is officially opened by Queen Elizabeth II in Sellafield, England.
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/I306352.php : accessed February 22, 2026), "Henricus Cornelis Gerardus Maria van der Velden (1956-)".
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