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 5 » The 6th All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens. In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.
April 2 » The ill-fated RMSTitanic begins sea trials.
April 10 » RMS Titanic sets sail from Southampton, England on her maiden and only voyage.
September 4 » Albanian rebels succeed in their revolt when the Ottoman Empire agrees to fulfill their demands
October 26 » First Balkan War: The Ottomans lose the cities of Thessaloniki and Skopje.
November 27 » Spain declares a protectorate over the north shore of Morocco.
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 7 » Benito Mussolini and French Foreign minister Pierre Laval sign the Franco-Italian Agreement.
February 13 » A jury in Flemington, New Jersey finds Bruno Hauptmann guilty of the 1932 kidnapping and murder of the Lindbergh baby, the son of Charles Lindbergh.
February 28 » DuPont scientist Wallace Carothers invents nylon.
July 28 » First flight of the Boeing B-17 Flying Fortress.
September 15 » Nazi Germany adopts a new national flag bearing the swastika.
September 24 » Earl and Weldon Bascom produce the first rodeo ever held outdoors under electric lights.
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
April 21 » Secretary's Day (now Administrative Professionals' Day) is first celebrated.
July 3 » The Constitution of Puerto Rico is approved by the United States Congress.
July 23 » General Muhammad Naguib leads the Free Officers Movement (formed by Gamal Abdel Nasser, the real power behind the coup) in overthrowing King Farouk of Egypt.
August 11 » Hussein bin Talal is proclaimed King of Jordan.
August 15 » A flash flood drenches the town of Lynmouth, England, killing 34 people.
December 24 » First flight of Britain's Handley Page Victor strategic bomber.
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 February 9, 2026), "Helena van den Berg (1912-1952)".
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