The temperature on January 8, 1885 was about -0.2 °C. The air pressure was 8 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 91%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
January 4 » Sino-French War: French troops under General Oscar de Négrier defeat a numerically superior Qing force at Núi Bop in northern Vietnam.
March 3 » The American Telephone & Telegraph Company is incorporated in New York.
March 14 » The Mikado, a light opera by W. S. Gilbert and Arthur Sullivan, receives its first public performance at the Savoy Theatre in London.
August 29 » Gottlieb Daimler patents the world's first internal combustion motorcycle, the Reitwagen.
September 22 » Lord Randolph Churchill makes a speech in Ulster in opposition to the Irish Home Rule movement.
November 19 » Serbo-Bulgarian War: Bulgarian victory in the Battle of Slivnitsa solidifies the unification between the Principality of Bulgaria and Eastern Rumelia.
Day of marriage June 12, 1913
The temperature on June 12, 1913 was between 4.8 °C and 16.0 °C and averaged 11.6 °C. There was 3.9 mm of rain. There was 9.8 hours of sunshine (59%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
February 5 » Greek military aviators, Michael Moutoussis and Aristeidis Moraitinis perform the first naval air mission in history, with a Farman MF.7 hydroplane.
May 14 » Governor of New York William Sulzer approves the charter for the Rockefeller Foundation, which begins operations with a $100million donation from John D. Rockefeller.
May 30 » The Treaty of London is signed, ending the First Balkan War; Albania becomes an independent nation.
August 28 » Queen Wilhelmina opens the Peace Palace in The Hague.
October 31 » Dedication of the Lincoln Highway, the first automobile highway across United States.
November 9 » The Great Lakes Storm of 1913, the most destructive natural disaster ever to hit the lakes, reaches its greatest intensity after beginning two days earlier. The storm destroys 19 ships and kills more than 250 people.
Day of death January 13, 1951
The temperature on January 13, 1951 was between 2.2 °C and 4.9 °C and averaged 3.9 °C. There was 3.0 mm of rain during 2.1 hours. The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
In The Netherlands , there was from March 15, 1951 to September 2, 1952 the cabinet Drees I, with Dr. W. Drees (PvdA) as prime minister.
February 27 » The Twenty-second Amendment to the United States Constitution, limiting Presidents to two terms, is ratified.
March 29 » Ethel and Julius Rosenberg are convicted of conspiracy to commit espionage.
May 3 » The United States Senate Committee on Armed Services and United States Senate Committee on Foreign Relations begin their closed door hearings into the relief of Douglas MacArthur by U.S. President Harry Truman.
May 16 » The first regularly scheduled transatlantic flights begin between Idlewild Airport (now John F Kennedy International Airport) in New York City and Heathrow Airport in London, operated by El Al Israel Airlines.
May 21 » The opening of the Ninth Street Show, otherwise known as the 9th Street Art Exhibition: A gathering of a number of notable artists, and the stepping-out of the post war New York avant-garde, collectively known as the New York School.
October 3 » Korean War: The First Battle of Maryang San pits Commonwealth troops against communist Chinese troops.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I58995.php : accessed October 4, 2026), "Helena Sidonia Leopold (1885-1951)".
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