The temperature on November 30, 1911 was between 5.4 °C and 7.9 °C and averaged 6.5 °C. There was 0.2 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
January 3 » A gun battle in the East End of London left two dead and sparked a political row over the involvement of then-Home Secretary Winston Churchill.
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
Day of marriage April 3, 1937
The temperature on April 3, 1937 was between 8.4 °C and 12.9 °C and averaged 10.2 °C. There was 1.6 mm of rain during 3.5 hours. There was -0.1 hours of sunshine (0%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
February 16 » Wallace H. Carothers receives a United States patent for nylon.
April 30 » The Commonwealth of the Philippines holds a plebiscite for Filipino women on whether they should be extended the right to suffrage; over 90% would vote in the affirmative.
May 21 » A Soviet station, North Pole-1, becomes the first scientific research settlement to operate on the drift ice of the Arctic Ocean.
June 14 » Pennsylvania becomes the first (and only) state of the United States to celebrate Flag Day officially as a state holiday.
September 21 » J. R. R. Tolkien's The Hobbit is published.
November 8 » The Nazi exhibition Der ewige Jude ("The Eternal Jew") opens in Munich.
Day of death December 25, 1969
The temperature on December 25, 1969 was between 2.5 °C and 4.7 °C and averaged 3.5 °C. There was 1.9 mm of rain during 3.8 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
March 17 » Golda Meir becomes the first female Prime Minister of Israel.
March 25 » During their honeymoon, John Lennon and Yoko Ono hold their first Bed-In for Peace at the Amsterdam Hilton Hotel (until March 31).
May 9 » Carlos Lamarca leads the first urban guerrilla action against the military dictatorship of Brazil in São Paulo, by robbing two banks.
May 10 » Vietnam War: The Battle of Dong Ap Bia begins with an assault on Hill 937. It will ultimately become known as Hamburger Hill.
July 16 » Apollo program: Apollo 11, the first mission to land astronauts on the Moon, is launched from the Kennedy Space Center at Cape Kennedy, Florida.
July 25 » Vietnam War: U.S. President Richard Nixon declares the Nixon Doctrine, stating that the United States now expects its Asian allies to take care of their own military defense. This is the start of the "Vietnamization" of the war.
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/I17018.php : accessed January 27, 2026), "Willem Hendrik Frederik Dreyer (1911-1969)".
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