The temperature on July 9, 1935 was between 9.8 °C and 24.6 °C and averaged 18.6 °C. There was 12.9 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
February 28 » DuPont scientist Wallace Carothers invents nylon.
March 21 » Shah of Iran Reza Shah Pahlavi formally asks the international community to call Persia by its native name, Iran.
April 14 » The Black Sunday dust storm, considered one of the worst storms of the Dust Bowl, swept across the Oklahoma and Texas panhandles and neighboring areas.
April 23 » The Polish Constitution of 1935 is adopted.
September 15 » Nazi Germany adopts a new national flag bearing the swastika.
December 12 » Lebensborn Project, a Nazi reproduction program, is founded by Heinrich Himmler.
Day of marriage April 9, 1955
The temperature on April 9, 1955 was between 6.6 °C and 11.1 °C and averaged 8.5 °C. There was 0.5 mm of rain during 1.0 hours. There was 2.8 hours of sunshine (21%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
April 12 » The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.
May 9 » Cold War: West Germany joins NATO.
May 25 » First ascent of Mount Kangchenjunga: A British expedition led by Charles Evans, Joe Brown and George Band reaches the summit of the third-highest mountain in the world (8,586 meters); Norman Hardie and Tony Streather join them the following day.
June 26 » The South African Congress Alliance adopts the Freedom Charter at the Congress of the People in Kliptown.
July 15 » Eighteen Nobel laureates sign the Mainau Declaration against nuclear weapons, later co-signed by thirty-four others.
November 1 » The bombing of United Airlines Flight 629 occurs near Longmont, Colorado, killing all 39 passengers and five crew members aboard the Douglas DC-6B airliner.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I12413.php : accessed January 21, 2026), "Jan Niclaas Dreyer (1935-2016)".
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