January 17 » El Yunque National Forest in Puerto Rico becomes part of the United States National Forest System as the Luquillo Forest Reserve.
June 16 » Roald Amundsen leaves Oslo, Norway, to commence the first east–west navigation of the Northwest Passage.
July 19 » Maurice Garin wins the first Tour de France.
August 2 » The Ilinden–Preobrazhenie Uprising against the Ottoman Empire begins.
August 29 » The Slava, the last of the five Borodino-class battleships, is launched.
November 18 » The Hay–Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
Day of marriage April 8, 1930
The temperature on April 8, 1930 was between 5.9 °C and 13.1 °C and averaged 8.3 °C. There was 0.8 hours of sunshine (6%). The average windspeed was 2 Bft (weak wind) and was prevailing from the ??. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 26 » The Indian National Congress declares 26 January as Independence Day or as the day for Poorna Swaraj ("Complete Independence") which occurred 17 years later.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
May 24 » Amy Johnson lands in Darwin, Northern Territory, becoming the first woman to fly solo from England to Australia (she left on May 5 for the 11,000 mile flight).
June 17 » U.S. President Herbert Hoover signs the Smoot–Hawley Tariff Act into law.
September 17 » The Kurdish Ararat rebellion is suppressed by the Turks.
December 29 » Sir Muhammad Iqbal's presidential address in Allahabad introduces the two-nation theory and outlines a vision for the creation of Pakistan.
Day of death July 21, 1967
The temperature on July 21, 1967 was between 10.0 °C and 21.8 °C and averaged 16.8 °C. There was 0.4 mm of rain during 0.2 hours. There was 7.3 hours of sunshine (45%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 2 » Ronald Reagan, past movie actor and future President of the United States, is sworn in as Governor of California.
February 4 » Lunar Orbiter program: Lunar Orbiter 3 lifts off from Cape Canaveral's Launch Complex 13 on its mission to identify possible landing sites for the Surveyor and Apollo spacecraft.
June 9 » Six-Day War: Israel captures the Golan Heights from Syria.
July 12 » Riots begin in Newark, New Jersey.
September 3 » Dagen H in Sweden: Traffic changes from driving on the left to driving on the right overnight.
November 9 » Apollo program: NASA launches the unmanned Apollo 4 test spacecraft atop the first Saturn V rocket from Cape Kennedy, Florida.
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/I19104.php : accessed February 2, 2026), "Susara Wilhelmina Coetzer (1903-1967)".
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