The temperature on July 28, 1912 was between 12.2 °C and 21.5 °C and averaged 17.8 °C. There was 6.3 hours of sunshine (40%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
April 2 » The ill-fated RMSTitanic begins sea trials.
August 14 » U.S. Marines invade Nicaragua to support the U.S.-backed government installed there after José Santos Zelaya had resigned three years earlier.
September 28 » Corporal Frank S. Scott of the United States Army becomes the first enlisted man to die in an airplane crash.
October 24 » First Balkan War: The Battle of Kumanovo concludes with the Serbian victory against the Ottoman Empire.
December 28 » The first municipally owned streetcars take to the streets in San Francisco.
Day of marriage September 11, 1935
The temperature on September 11, 1935 was between 3.8 °C and 18.8 °C and averaged 11.9 °C. There was 9.4 hours of sunshine (72%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
January 11 » Amelia Earhart becomes the first person to fly solo from Hawaii to California.
July 5 » The National Labor Relations Act, which governs labor relations in the United States, is signed into law by President Franklin D. Roosevelt.
September 3 » Sir Malcolm Campbell reaches a speed of 304.331 miles per hour on the Bonneville Salt Flats in Utah, becoming the first person to drive an automobile over 300mph.
October 20 » The Long March, a mammoth retreat undertaken by the armed forces of the Chinese Communist Party a year prior, ends.
November 22 » The China Clipper inaugurates the first commercial transpacific air service, connecting Alameda, California with Manila.
December 5 » Mary McLeod Bethune founds the National Council of Negro Women in New York City.
Day of death April 12, 1952
The temperature on April 12, 1952 was between 9.7 °C and 18.6 °C and averaged 13.5 °C. The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
February 20 » Emmett Ashford becomes the first African-American umpire in organized baseball by being authorized to be a substitute umpire in the Southwestern International League.
April 28 » Dwight D. Eisenhower resigns as Supreme Allied Commander of NATO.
July 19 » Opening of the Summer Olympics in Helsinki, Finland.
September 12 » Strange occurrences, including a monster sighting, take place in Flatwoods, West Virginia.
October 14 » Korean War: The Battle of Triangle Hill is the biggest and bloodiest battle of 1952.
December 5 » Beginning of the Great Smog in London. A cold fog combines with air pollution and brings the city to a standstill for four days. Later, a Ministry of Health report estimates 4,000 fatalities as a result of it.
When copying data from this family tree, please include a reference to the origin: Ferry Posthuma Scholtes, "Family tree Posthuma", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-posthuma/R506.php : accessed September 24, 2026), "Helena van den Berg (1912-1952)".
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